diff --git "a/data/1.python\345\210\235\351\230\266/1.\351\242\204\345\244\207\347\237\245\350\257\206/5.\345\270\270\347\224\250\345\274\200\345\217\221\345\267\245\345\205\267/config.json" "b/data/1.python\345\210\235\351\230\266/1.\351\242\204\345\244\207\347\237\245\350\257\206/5.\345\270\270\347\224\250\345\274\200\345\217\221\345\267\245\345\205\267/config.json"
index 9a3087a236a9c8739b23273c5484afaed9b4feed..c2927d6ddb75213a0da8b62c24e5b2256c719801 100644
--- "a/data/1.python\345\210\235\351\230\266/1.\351\242\204\345\244\207\347\237\245\350\257\206/5.\345\270\270\347\224\250\345\274\200\345\217\221\345\267\245\345\205\267/config.json"
+++ "b/data/1.python\345\210\235\351\230\266/1.\351\242\204\345\244\207\347\237\245\350\257\206/5.\345\270\270\347\224\250\345\274\200\345\217\221\345\267\245\345\205\267/config.json"
@@ -4,141 +4,6 @@
   ],
   "keywords": [],
   "children": [
-    {
-      "typing --- 类型提示支持": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-6",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "pydoc --- 文档生成器和在线帮助系统": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-7",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "Python Development Mode": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-8",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "Effects of the Python Development Mode": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-9",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "ResourceWarning Example": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-10",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "Bad file descriptor error example": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-11",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "doctest --- 测试交互性的Python示例": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-12",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "unittest.mock --- mock对象库": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-14",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "unittest.mock上手指南": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-15",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "2to3 - 自动将Python 2 代码转为Python 3 代码": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-16",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "test ---  Python回归测试包": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-17",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "test.support --- Utilities for the Python test suite": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-18",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "test.support.socket_helper --- Utilities for socket tests": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-19",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "test.support.script_helper --- Utilities for the Python execution tests": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-20",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "test.support.bytecode_helper --- Support tools for testing correct bytecode generation": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-21",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
     {
       "使用PyCharm开发Python": {
         "keywords": [],
diff --git "a/data/1.python\345\210\235\351\230\266/2.\345\237\272\347\241\200\350\257\255\346\263\225/6.\346\235\241\344\273\266\345\222\214\345\210\206\346\224\257/config.json" "b/data/1.python\345\210\235\351\230\266/2.\345\237\272\347\241\200\350\257\255\346\263\225/6.\346\235\241\344\273\266\345\222\214\345\210\206\346\224\257/config.json"
index a9b1501ed1d51b3e0dbf5e7d77df2cbaf56e31c5..09d6f086e30401e2105ad7523e0e2b2e644ffb24 100644
--- "a/data/1.python\345\210\235\351\230\266/2.\345\237\272\347\241\200\350\257\255\346\263\225/6.\346\235\241\344\273\266\345\222\214\345\210\206\346\224\257/config.json"
+++ "b/data/1.python\345\210\235\351\230\266/2.\345\237\272\347\241\200\350\257\255\346\263\225/6.\346\235\241\344\273\266\345\222\214\345\210\206\346\224\257/config.json"
@@ -96,124 +96,6 @@
         "keywords_must": [],
         "keywords_forbid": []
       }
-    },
-    {
-      "条件判断": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-99",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "这正是布尔值的用武之地": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-100",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "代码块嵌套": {
-        "keywords": [],
-        "children": [
-          {
-            "字典列表": {
-              "keywords": [],
-              "children": [],
-              "node_id": "python-5-69",
-              "keywords_must": [],
-              "keywords_forbid": []
-            }
-          },
-          {
-            "在字典中存储列表": {
-              "keywords": [],
-              "children": [],
-              "node_id": "python-5-70",
-              "keywords_must": [],
-              "keywords_forbid": []
-            }
-          },
-          {
-            "在字典中存储字典": {
-              "keywords": [],
-              "children": [],
-              "node_id": "python-5-71",
-              "keywords_must": [],
-              "keywords_forbid": []
-            }
-          }
-        ],
-        "node_id": "python-4-101",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "检查是否相等": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-102",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "检查是否相等时忽略大小写": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-103",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "检查是否不相等": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-104",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "数值比较": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-105",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "检查多个条件": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-106",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "检查特定值是否包含在列表中": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-107",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "布尔表达式": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-108",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
     }
   ],
   "node_id": "python-3-12",
diff --git "a/data/1.python\345\210\235\351\230\266/2.\345\237\272\347\241\200\350\257\255\346\263\225/7.\345\276\252\347\216\257/config.json" "b/data/1.python\345\210\235\351\230\266/2.\345\237\272\347\241\200\350\257\255\346\263\225/7.\345\276\252\347\216\257/config.json"
index 1dd7c231473e73ba2e317ae4af7161b4dce15be8..a148e777e00f85110ae2b5844bccd52314eddebf 100644
--- "a/data/1.python\345\210\235\351\230\266/2.\345\237\272\347\241\200\350\257\255\346\263\225/7.\345\276\252\347\216\257/config.json"
+++ "b/data/1.python\345\210\235\351\230\266/2.\345\237\272\347\241\200\350\257\255\346\263\225/7.\345\276\252\347\216\257/config.json"
@@ -41,42 +41,6 @@
         "keywords_forbid": []
       }
     },
-    {
-      "循环判断": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-113",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "迭代字典": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-114",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "一些迭代工具": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-115",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "跳出循环": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-116",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
     {
       "循环中的else子句": {
         "keywords": [],
diff --git "a/data/1.python\345\210\235\351\230\266/2.\345\237\272\347\241\200\350\257\255\346\263\225/8.\346\225\260\346\215\256\347\261\273\345\236\213/config.json" "b/data/1.python\345\210\235\351\230\266/2.\345\237\272\347\241\200\350\257\255\346\263\225/8.\346\225\260\346\215\256\347\261\273\345\236\213/config.json"
index bdfbedc01fccf5505330272808db2e9b8ba997c9..51897b3a01339eb4e9d7ea005d2036268d0f678d 100644
--- "a/data/1.python\345\210\235\351\230\266/2.\345\237\272\347\241\200\350\257\255\346\263\225/8.\346\225\260\346\215\256\347\261\273\345\236\213/config.json"
+++ "b/data/1.python\345\210\235\351\230\266/2.\345\237\272\347\241\200\350\257\255\346\263\225/8.\346\225\260\346\215\256\347\261\273\345\236\213/config.json"
@@ -171,141 +171,6 @@
         "keywords_must": [],
         "keywords_forbid": []
       }
-    },
-    {
-      "datetime --- 基本的日期和时间类型": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-122",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "zoneinfo --- IANA时区支持": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-123",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "calendar --- 日历相关函数": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-124",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "collections --- 容器数据类型": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-125",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "collections.abc --- 容器的抽象基类": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-126",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "heapq --- 堆队列算法": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-127",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "bisect --- 数组二分查找算法": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-128",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "array --- 高效的数值数组": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-129",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "weakref --- 弱引用": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-130",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "types --- 动态类型创建和内置类型名称": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-131",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "copy --- 浅层 (shallow) 和深层 (deep) 复制操作": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-132",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "pprint --- 数据美化输出": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-133",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "reprlib --- 另一种repr 实现": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-134",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "enum --- 对枚举的支持": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-135",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "graphlib --- Functionality to operate with graph-like structures": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-136",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
     }
   ],
   "node_id": "python-3-14",
diff --git "a/data/1.python\345\210\235\351\230\266/2.\345\237\272\347\241\200\350\257\255\346\263\225/9.\345\206\205\347\275\256\347\261\273/config.json" "b/data/1.python\345\210\235\351\230\266/2.\345\237\272\347\241\200\350\257\255\346\263\225/9.\345\206\205\347\275\256\347\261\273/config.json"
index 92841f7fb6c0616f7618de08ca1bd838b31b4330..31de93270bf2d71c8c0908fec53048112606d6de 100644
--- "a/data/1.python\345\210\235\351\230\266/2.\345\237\272\347\241\200\350\257\255\346\263\225/9.\345\206\205\347\275\256\347\261\273/config.json"
+++ "b/data/1.python\345\210\235\351\230\266/2.\345\237\272\347\241\200\350\257\255\346\263\225/9.\345\206\205\347\275\256\347\261\273/config.json"
@@ -553,24 +553,6 @@
         "keywords_must": [],
         "keywords_forbid": []
       }
-    },
-    {
-      "整型：int": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-141",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "字符串：str": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-142",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
     }
   ],
   "node_id": "python-3-15",
diff --git "a/data/1.python\345\210\235\351\230\266/3.\350\277\233\351\230\266\350\257\255\346\263\225/2.\344\270\211\345\205\203\350\241\250\350\276\276\345\274\217/config.json" "b/data/1.python\345\210\235\351\230\266/3.\350\277\233\351\230\266\350\257\255\346\263\225/2.\344\270\211\345\205\203\350\241\250\350\276\276\345\274\217/config.json"
index c540c71cf4c75b781f7b97be1e81c27184ff48f3..ad7213b98ffa698d39f7749c5ad7fb28dcb035b6 100644
--- "a/data/1.python\345\210\235\351\230\266/3.\350\277\233\351\230\266\350\257\255\346\263\225/2.\344\270\211\345\205\203\350\241\250\350\276\276\345\274\217/config.json"
+++ "b/data/1.python\345\210\235\351\230\266/3.\350\277\233\351\230\266\350\257\255\346\263\225/2.\344\270\211\345\205\203\350\241\250\350\276\276\345\274\217/config.json"
@@ -4,143 +4,7 @@
     "triple02.json"
   ],
   "keywords": [],
-  "children": [
-    {
-      "算术转换": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-156",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "原子": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-157",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "原型": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-158",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "await表达式": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-159",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "幂运算符": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-160",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "一元算术和位运算": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-161",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "二元算术运算符": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-162",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "移位运算": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-163",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "比较运算": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-164",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "布尔运算": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-165",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "赋值表达式": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-166",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "条件表达式": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-167",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "表达式列表": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-168",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "求值顺序": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-169",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "运算符优先级": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-170",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    }
-  ],
+  "children": [],
   "node_id": "python-3-18",
   "keywords_must": [
     "三元表达式"
diff --git "a/data/1.python\345\210\235\351\230\266/3.\350\277\233\351\230\266\350\257\255\346\263\225/6.\345\255\227\347\254\246\344\270\262\346\226\271\346\263\225/config.json" "b/data/1.python\345\210\235\351\230\266/3.\350\277\233\351\230\266\350\257\255\346\263\225/6.\345\255\227\347\254\246\344\270\262\346\226\271\346\263\225/config.json"
index e4d0a097dbfc030e6d46a65df42f2b8829a90a05..5c2835fe758250e313ce52304e0694acbd18243c 100644
--- "a/data/1.python\345\210\235\351\230\266/3.\350\277\233\351\230\266\350\257\255\346\263\225/6.\345\255\227\347\254\246\344\270\262\346\226\271\346\263\225/config.json"
+++ "b/data/1.python\345\210\235\351\230\266/3.\350\277\233\351\230\266\350\257\255\346\263\225/6.\345\255\227\347\254\246\344\270\262\346\226\271\346\263\225/config.json"
@@ -93,15 +93,6 @@
         "keywords_must": [],
         "keywords_forbid": []
       }
-    },
-    {
-      "判断字符串是否满足特定的条件": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-183",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
     }
   ],
   "node_id": "python-3-22",
diff --git "a/data/1.python\345\210\235\351\230\266/3.\350\277\233\351\230\266\350\257\255\346\263\225/9.\345\270\270\347\224\250\346\240\207\345\207\206\345\272\223/config.json" "b/data/1.python\345\210\235\351\230\266/3.\350\277\233\351\230\266\350\257\255\346\263\225/9.\345\270\270\347\224\250\346\240\207\345\207\206\345\272\223/config.json"
index bac845f23bf76544afe2e9828fa1f0d118db5015..dabca5a31f1d62700d65ff0674c81afde1096f02 100644
--- "a/data/1.python\345\210\235\351\230\266/3.\350\277\233\351\230\266\350\257\255\346\263\225/9.\345\270\270\347\224\250\346\240\207\345\207\206\345\272\223/config.json"
+++ "b/data/1.python\345\210\235\351\230\266/3.\350\277\233\351\230\266\350\257\255\346\263\225/9.\345\270\270\347\224\250\346\240\207\345\207\206\345\272\223/config.json"
@@ -94,15 +94,6 @@
         "keywords_must": [],
         "keywords_forbid": []
       }
-    },
-    {
-      "其他有趣的标准模块": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-202",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
     }
   ],
   "node_id": "python-3-25",
diff --git "a/data/2.python\344\270\255\351\230\266/1.\345\237\272\346\234\254\346\212\200\350\203\275/4.\346\225\260\346\215\256\345\272\223\346\223\215\344\275\234/config.json" "b/data/2.python\344\270\255\351\230\266/1.\345\237\272\346\234\254\346\212\200\350\203\275/4.\346\225\260\346\215\256\345\272\223\346\223\215\344\275\234/config.json"
index fb553cfd71cdeb61d542b8497e7cae70a539302b..ab0bb8090aed00fbec31ff13b4065765c0309ffd 100644
--- "a/data/2.python\344\270\255\351\230\266/1.\345\237\272\346\234\254\346\212\200\350\203\275/4.\346\225\260\346\215\256\345\272\223\346\223\215\344\275\234/config.json"
+++ "b/data/2.python\344\270\255\351\230\266/1.\345\237\272\346\234\254\346\212\200\350\203\275/4.\346\225\260\346\215\256\345\272\223\346\223\215\344\275\234/config.json"
@@ -14,15 +14,6 @@
   ],
   "keywords": [],
   "children": [
-    {
-      "数据库概述": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-755",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
     {
       "数据库安装配置": {
         "keywords": [],
@@ -123,34 +114,6 @@
         "keywords_must": [],
         "keywords_forbid": []
       }
-    },
-    {
-      "数据库编程接口": {
-        "keywords": [],
-        "children": [
-          {
-            "连接对象": {
-              "keywords": [],
-              "children": [],
-              "node_id": "python-5-415",
-              "keywords_must": [],
-              "keywords_forbid": []
-            }
-          },
-          {
-            "游标对象": {
-              "keywords": [],
-              "children": [],
-              "node_id": "python-5-416",
-              "keywords_must": [],
-              "keywords_forbid": []
-            }
-          }
-        ],
-        "node_id": "python-4-761",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
     }
   ],
   "node_id": "python-3-130",
diff --git "a/data/2.python\344\270\255\351\230\266/2.Web\345\272\224\347\224\250\345\274\200\345\217\221/2. Django/config.json" "b/data/2.python\344\270\255\351\230\266/2.Web\345\272\224\347\224\250\345\274\200\345\217\221/2. Django/config.json"
index 7a1317bee84fb63997f16e06f5506092865e33ea..9a00819a4bd3f00bd5792e08cfcad85365e5e99a 100644
--- "a/data/2.python\344\270\255\351\230\266/2.Web\345\272\224\347\224\250\345\274\200\345\217\221/2. Django/config.json"	
+++ "b/data/2.python\344\270\255\351\230\266/2.Web\345\272\224\347\224\250\345\274\200\345\217\221/2. Django/config.json"	
@@ -84,319 +84,6 @@
         "keywords_must": [],
         "keywords_forbid": []
       }
-    },
-    {
-      "Django开发案例": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-802",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "Web框架": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-803",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "“Hello World”应用（一个博客）": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-804",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "创建模型来添加数据库服务": {
-        "keywords": [],
-        "children": [
-          {
-            "设置数据库": {
-              "keywords": [],
-              "children": [],
-              "node_id": "python-5-447",
-              "keywords_must": [],
-              "keywords_forbid": []
-            }
-          }
-        ],
-        "node_id": "python-4-805",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "Python应用shell": {
-        "keywords": [],
-        "children": [
-          {
-            "在Django中使用Python shell": {
-              "keywords": [],
-              "children": [],
-              "node_id": "python-5-448",
-              "keywords_must": [],
-              "keywords_forbid": []
-            }
-          },
-          {
-            "测试数据模型": {
-              "keywords": [],
-              "children": [],
-              "node_id": "python-5-449",
-              "keywords_must": [],
-              "keywords_forbid": []
-            }
-          }
-        ],
-        "node_id": "python-4-806",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "Django管理应用": {
-        "keywords": [],
-        "children": [
-          {
-            "设置admin": {
-              "keywords": [],
-              "children": [],
-              "node_id": "python-5-450",
-              "keywords_must": [],
-              "keywords_forbid": []
-            }
-          },
-          {
-            "使用admin": {
-              "keywords": [],
-              "children": [],
-              "node_id": "python-5-451",
-              "keywords_must": [],
-              "keywords_forbid": []
-            }
-          }
-        ],
-        "node_id": "python-4-807",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "创建博客的用户界面": {
-        "keywords": [],
-        "children": [
-          {
-            "创建模板": {
-              "keywords": [],
-              "children": [],
-              "node_id": "python-5-452",
-              "keywords_must": [],
-              "keywords_forbid": []
-            }
-          },
-          {
-            "创建URL模式": {
-              "keywords": [],
-              "children": [],
-              "node_id": "python-5-453",
-              "keywords_must": [],
-              "keywords_forbid": []
-            }
-          },
-          {
-            "创建视图函数": {
-              "keywords": [],
-              "children": [],
-              "node_id": "python-5-454",
-              "keywords_must": [],
-              "keywords_forbid": []
-            }
-          }
-        ],
-        "node_id": "python-4-808",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "改进输出": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-809",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "处理用户输入": {
-        "keywords": [],
-        "children": [
-          {
-            "添加URLconf项": {
-              "keywords": [],
-              "children": [],
-              "node_id": "python-5-455",
-              "keywords_must": [],
-              "keywords_forbid": []
-            }
-          },
-          {
-            "视图：处理用户输入": {
-              "keywords": [],
-              "children": [],
-              "node_id": "python-5-456",
-              "keywords_must": [],
-              "keywords_forbid": []
-            }
-          },
-          {
-            "跨站点请求伪造": {
-              "keywords": [],
-              "children": [],
-              "node_id": "python-5-457",
-              "keywords_must": [],
-              "keywords_forbid": []
-            }
-          }
-        ],
-        "node_id": "python-4-810",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "表单和模型表单": {
-        "keywords": [],
-        "children": [
-          {
-            "Django表单简介": {
-              "keywords": [],
-              "children": [],
-              "node_id": "python-5-458",
-              "keywords_must": [],
-              "keywords_forbid": []
-            }
-          },
-          {
-            "模型表单示例": {
-              "keywords": [],
-              "children": [],
-              "node_id": "python-5-459",
-              "keywords_must": [],
-              "keywords_forbid": []
-            }
-          },
-          {
-            "使用ModelForm来生成HTML表单": {
-              "keywords": [],
-              "children": [],
-              "node_id": "python-5-460",
-              "keywords_must": [],
-              "keywords_forbid": []
-            }
-          },
-          {
-            "处理ModelForm数据": {
-              "keywords": [],
-              "children": [],
-              "node_id": "python-5-461",
-              "keywords_must": [],
-              "keywords_forbid": []
-            }
-          }
-        ],
-        "node_id": "python-4-811",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "视图进阶": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-812",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "*改善外观": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-813",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "*中级Django应用：TweetApprover": {
-        "keywords": [],
-        "children": [
-          {
-            "安装Twython库": {
-              "keywords": [],
-              "children": [],
-              "node_id": "python-5-462",
-              "keywords_must": [],
-              "keywords_forbid": []
-            }
-          },
-          {
-            "URL结构": {
-              "keywords": [],
-              "children": [],
-              "node_id": "python-5-463",
-              "keywords_must": [],
-              "keywords_forbid": []
-            }
-          },
-          {
-            "数据模型": {
-              "keywords": [],
-              "children": [],
-              "node_id": "python-5-464",
-              "keywords_must": [],
-              "keywords_forbid": []
-            }
-          },
-          {
-            "提交新推文以便审核": {
-              "keywords": [],
-              "children": [],
-              "node_id": "python-5-465",
-              "keywords_must": [],
-              "keywords_forbid": []
-            }
-          },
-          {
-            "审核推文": {
-              "keywords": [],
-              "children": [],
-              "node_id": "python-5-466",
-              "keywords_must": [],
-              "keywords_forbid": []
-            }
-          }
-        ],
-        "node_id": "python-4-814",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "资源": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-815",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
     }
   ],
   "node_id": "python-3-137",
diff --git "a/data/2.python\344\270\255\351\230\266/2.Web\345\272\224\347\224\250\345\274\200\345\217\221/3. Tornado/config.json" "b/data/2.python\344\270\255\351\230\266/2.Web\345\272\224\347\224\250\345\274\200\345\217\221/3. Tornado/config.json"
index 28d8b1a4cf027de620eca7909c0f41ed385c07cf..671a14d932d65bd6a169ff5c47374cc986659a56 100644
--- "a/data/2.python\344\270\255\351\230\266/2.Web\345\272\224\347\224\250\345\274\200\345\217\221/3. Tornado/config.json"	
+++ "b/data/2.python\344\270\255\351\230\266/2.Web\345\272\224\347\224\250\345\274\200\345\217\221/3. Tornado/config.json"	
@@ -75,15 +75,6 @@
         "keywords_must": [],
         "keywords_forbid": []
       }
-    },
-    {
-      "Tornado开发案例": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-824",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
     }
   ],
   "node_id": "python-3-138",
diff --git "a/data/2.python\344\270\255\351\230\266/2.Web\345\272\224\347\224\250\345\274\200\345\217\221/4. Flask/config.json" "b/data/2.python\344\270\255\351\230\266/2.Web\345\272\224\347\224\250\345\274\200\345\217\221/4. Flask/config.json"
index 5b1a6f9fb4faca308d8ffab2f1bc4721818843d2..34b844e913407eff9645452aa17434e8207f514e 100644
--- "a/data/2.python\344\270\255\351\230\266/2.Web\345\272\224\347\224\250\345\274\200\345\217\221/4. Flask/config.json"	
+++ "b/data/2.python\344\270\255\351\230\266/2.Web\345\272\224\347\224\250\345\274\200\345\217\221/4. Flask/config.json"	
@@ -910,15 +910,6 @@
         "keywords_must": [],
         "keywords_forbid": []
       }
-    },
-    {
-      "Flask开发案例": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-835",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
     }
   ],
   "node_id": "python-3-139",
diff --git "a/data/2.python\344\270\255\351\230\266/3.\347\275\221\347\273\234\347\210\254\350\231\253/2.\346\255\243\345\210\231\350\241\250\350\276\276\345\274\217/config.json" "b/data/2.python\344\270\255\351\230\266/3.\347\275\221\347\273\234\347\210\254\350\231\253/2.\346\255\243\345\210\231\350\241\250\350\276\276\345\274\217/config.json"
index 39f996f65f69f0c0025746246c8c31af920d4030..c80ef0ce1c2faf4373a33283043cdcda7b3f4a06 100644
--- "a/data/2.python\344\270\255\351\230\266/3.\347\275\221\347\273\234\347\210\254\350\231\253/2.\346\255\243\345\210\231\350\241\250\350\276\276\345\274\217/config.json"
+++ "b/data/2.python\344\270\255\351\230\266/3.\347\275\221\347\273\234\347\210\254\350\231\253/2.\346\255\243\345\210\231\350\241\250\350\276\276\345\274\217/config.json"
@@ -33,124 +33,6 @@
         "keywords_must": [],
         "keywords_forbid": []
       }
-    },
-    {
-      "简介／动机": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-874",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "特殊符号和字符": {
-        "keywords": [],
-        "children": [
-          {
-            "使用择一匹配符号匹配多个正则表达式模式": {
-              "keywords": [],
-              "children": [],
-              "node_id": "python-5-526",
-              "keywords_must": [],
-              "keywords_forbid": []
-            }
-          },
-          {
-            "匹配任意单个字符": {
-              "keywords": [],
-              "children": [],
-              "node_id": "python-5-527",
-              "keywords_must": [],
-              "keywords_forbid": []
-            }
-          },
-          {
-            "从字符串起始或者结尾或者单词边界匹配": {
-              "keywords": [],
-              "children": [],
-              "node_id": "python-5-528",
-              "keywords_must": [],
-              "keywords_forbid": []
-            }
-          },
-          {
-            "创建字符集": {
-              "keywords": [],
-              "children": [],
-              "node_id": "python-5-529",
-              "keywords_must": [],
-              "keywords_forbid": []
-            }
-          },
-          {
-            "限定范围和否定": {
-              "keywords": [],
-              "children": [],
-              "node_id": "python-5-530",
-              "keywords_must": [],
-              "keywords_forbid": []
-            }
-          },
-          {
-            "使用闭包操作符实现存在性和频数匹配": {
-              "keywords": [],
-              "children": [],
-              "node_id": "python-5-531",
-              "keywords_must": [],
-              "keywords_forbid": []
-            }
-          },
-          {
-            "表示字符集的特殊字符": {
-              "keywords": [],
-              "children": [],
-              "node_id": "python-5-532",
-              "keywords_must": [],
-              "keywords_forbid": []
-            }
-          },
-          {
-            "使用圆括号指定分组": {
-              "keywords": [],
-              "children": [],
-              "node_id": "python-5-533",
-              "keywords_must": [],
-              "keywords_forbid": []
-            }
-          },
-          {
-            "扩展表示法": {
-              "keywords": [],
-              "children": [],
-              "node_id": "python-5-534",
-              "keywords_must": [],
-              "keywords_forbid": []
-            }
-          }
-        ],
-        "node_id": "python-4-875",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "一些正则表达式示例": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-876",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "更长的正则表达式示例": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-877",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
     }
   ],
   "node_id": "python-3-148",
diff --git "a/data/2.python\344\270\255\351\230\266/3.\347\275\221\347\273\234\347\210\254\350\231\253/5.requests/config.json" "b/data/2.python\344\270\255\351\230\266/3.\347\275\221\347\273\234\347\210\254\350\231\253/5.requests/config.json"
index 33249fc1c46534c0acc5b77f2e596dc4f162ea40..3136cc0d89202207e6e81bea5e4cb8855ac999ba 100644
--- "a/data/2.python\344\270\255\351\230\266/3.\347\275\221\347\273\234\347\210\254\350\231\253/5.requests/config.json"
+++ "b/data/2.python\344\270\255\351\230\266/3.\347\275\221\347\273\234\347\210\254\350\231\253/5.requests/config.json"
@@ -86,24 +86,6 @@
         "keywords_must": [],
         "keywords_forbid": []
       }
-    },
-    {
-      "基本用法": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-898",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "高级用法": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-899",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
     }
   ],
   "node_id": "python-3-151",
diff --git "a/data/2.python\344\270\255\351\230\266/3.\347\275\221\347\273\234\347\210\254\350\231\253/7.Scrapy\346\241\206\346\236\266/config.json" "b/data/2.python\344\270\255\351\230\266/3.\347\275\221\347\273\234\347\210\254\350\231\253/7.Scrapy\346\241\206\346\236\266/config.json"
index ad2c52c4efbe976afde0f738466152a2dbf9c750..6ccd43fac1e9599531867e5d3ce571d68244bdfb 100644
--- "a/data/2.python\344\270\255\351\230\266/3.\347\275\221\347\273\234\347\210\254\350\231\253/7.Scrapy\346\241\206\346\236\266/config.json"
+++ "b/data/2.python\344\270\255\351\230\266/3.\347\275\221\347\273\234\347\210\254\350\231\253/7.Scrapy\346\241\206\346\236\266/config.json"
@@ -67,123 +67,6 @@
         "keywords_must": [],
         "keywords_forbid": []
       }
-    },
-    {
-      "Scrapy框架介绍": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-915",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "Scrapy入门": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-916",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "Selector的用法": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-917",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "Spider的用法": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-918",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "Downloader Middleware的用法": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-919",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "Spider Middleware的用法": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-920",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "Item Pipeline的用法": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-921",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "Scrapy对接Selenium": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-922",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "Scrapy对接Splash": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-923",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "Scrapy通用爬虫": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-924",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "Scrapyrt的使用": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-925",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "Scrapy对接Docker": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-926",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "Scrapy爬取新浪微博": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-927",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
     }
   ],
   "node_id": "python-3-153",
diff --git "a/data/3.python\351\253\230\351\230\266/5.\346\225\260\346\215\256\345\210\206\346\236\220/1.CSV\346\226\207\344\273\266/config.json" "b/data/3.python\351\253\230\351\230\266/5.\346\225\260\346\215\256\345\210\206\346\236\220/1.CSV\346\226\207\344\273\266/config.json"
index 5ed95be70ce596c2f9143671d1b91317c35489e5..310ed87914c737323d15c7e9de9642fd0bd140c1 100644
--- "a/data/3.python\351\253\230\351\230\266/5.\346\225\260\346\215\256\345\210\206\346\236\220/1.CSV\346\226\207\344\273\266/config.json"
+++ "b/data/3.python\351\253\230\351\230\266/5.\346\225\260\346\215\256\345\210\206\346\236\220/1.CSV\346\226\207\344\273\266/config.json"
@@ -97,24 +97,6 @@
         "keywords_must": [],
         "keywords_forbid": []
       }
-    },
-    {
-      "从多个文件中连接数据": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-1232",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "计算每个文件中值的总和与均值": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-1233",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
     }
   ],
   "node_id": "python-3-224",
diff --git "a/data/3.python\351\253\230\351\230\266/5.\346\225\260\346\215\256\345\210\206\346\236\220/3.\346\227\266\351\227\264\345\272\217\345\210\227/config.json" "b/data/3.python\351\253\230\351\230\266/5.\346\225\260\346\215\256\345\210\206\346\236\220/3.\346\227\266\351\227\264\345\272\217\345\210\227/config.json"
index 842062ec17464ed0e08b9095f7cb6acb23586f47..d69baf6f1b975d75d609f01b21aae449532488b8 100644
--- "a/data/3.python\351\253\230\351\230\266/5.\346\225\260\346\215\256\345\210\206\346\236\220/3.\346\227\266\351\227\264\345\272\217\345\210\227/config.json"
+++ "b/data/3.python\351\253\230\351\230\266/5.\346\225\260\346\215\256\345\210\206\346\236\220/3.\346\227\266\351\227\264\345\272\217\345\210\227/config.json"
@@ -129,15 +129,6 @@
   },
   "node_id": "python-3-241",
   "children": [
-    {
-      "变化的分类": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-1402",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
     {
       "包含趋势的序列分析": {
         "keywords": [],
@@ -175,34 +166,6 @@
         "keywords_forbid": []
       }
     },
-    {
-      "从时间序列中去除周期性": {
-        "keywords": [],
-        "children": [
-          {
-            "滤波": {
-              "keywords": [],
-              "children": [],
-              "node_id": "python-5-1326",
-              "keywords_must": [],
-              "keywords_forbid": []
-            }
-          },
-          {
-            "差分": {
-              "keywords": [],
-              "children": [],
-              "node_id": "python-5-1327",
-              "keywords_must": [],
-              "keywords_forbid": []
-            }
-          }
-        ],
-        "node_id": "python-4-1405",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
     {
       "平稳时间序列": {
         "keywords": [],
@@ -240,43 +203,6 @@
         "keywords_forbid": []
       }
     },
-    {
-      "使用Python进行时间序列分析": {
-        "keywords": [],
-        "children": [
-          {
-            "有用的方法": {
-              "keywords": [],
-              "children": [],
-              "node_id": "python-5-1331",
-              "keywords_must": [],
-              "keywords_forbid": []
-            }
-          },
-          {
-            "自回归过程": {
-              "keywords": [],
-              "children": [],
-              "node_id": "python-5-1332",
-              "keywords_must": [],
-              "keywords_forbid": []
-            }
-          },
-          {
-            "估计AR过程的参数": {
-              "keywords": [],
-              "children": [],
-              "node_id": "python-5-1333",
-              "keywords_must": [],
-              "keywords_forbid": []
-            }
-          }
-        ],
-        "node_id": "python-4-1407",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
     {
       "混合ARMA模型": {
         "keywords": [],
@@ -294,24 +220,6 @@
         "keywords_must": [],
         "keywords_forbid": []
       }
-    },
-    {
-      "一个特殊的场景": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-1410",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
-    },
-    {
-      "数据缺失": {
-        "keywords": [],
-        "children": [],
-        "node_id": "python-4-1411",
-        "keywords_must": [],
-        "keywords_forbid": []
-      }
     }
   ],
   "keywords_must": [],
diff --git a/data/tree.json b/data/tree.json
index 609dd0dffc8b9a9e74fb731153c18bf96769a800..535b08e825005c38866ece6cc9c37abda869440b 100644
--- a/data/tree.json
+++ b/data/tree.json
@@ -173,141 +173,6 @@
                       "node_id": "python-3-4",
                       "keywords": [],
                       "children": [
-                        {
-                          "typing --- 类型提示支持": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-6",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "pydoc --- 文档生成器和在线帮助系统": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-7",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "Python Development Mode": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-8",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "Effects of the Python Development Mode": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-9",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "ResourceWarning Example": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-10",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "Bad file descriptor error example": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-11",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "doctest --- 测试交互性的Python示例": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-12",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "unittest.mock --- mock对象库": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-14",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "unittest.mock上手指南": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-15",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "2to3 - 自动将Python 2 代码转为Python 3 代码": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-16",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "test ---  Python回归测试包": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-17",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "test.support --- Utilities for the Python test suite": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-18",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "test.support.socket_helper --- Utilities for socket tests": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-19",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "test.support.script_helper --- Utilities for the Python execution tests": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-20",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "test.support.bytecode_helper --- Support tools for testing correct bytecode generation": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-21",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
                         {
                           "使用PyCharm开发Python": {
                             "keywords": [],
@@ -1961,124 +1826,6 @@
                             "keywords_must": [],
                             "keywords_forbid": []
                           }
-                        },
-                        {
-                          "条件判断": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-99",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "这正是布尔值的用武之地": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-100",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "代码块嵌套": {
-                            "keywords": [],
-                            "children": [
-                              {
-                                "字典列表": {
-                                  "keywords": [],
-                                  "children": [],
-                                  "node_id": "python-5-69",
-                                  "keywords_must": [],
-                                  "keywords_forbid": []
-                                }
-                              },
-                              {
-                                "在字典中存储列表": {
-                                  "keywords": [],
-                                  "children": [],
-                                  "node_id": "python-5-70",
-                                  "keywords_must": [],
-                                  "keywords_forbid": []
-                                }
-                              },
-                              {
-                                "在字典中存储字典": {
-                                  "keywords": [],
-                                  "children": [],
-                                  "node_id": "python-5-71",
-                                  "keywords_must": [],
-                                  "keywords_forbid": []
-                                }
-                              }
-                            ],
-                            "node_id": "python-4-101",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "检查是否相等": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-102",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "检查是否相等时忽略大小写": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-103",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "检查是否不相等": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-104",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "数值比较": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-105",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "检查多个条件": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-106",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "检查特定值是否包含在列表中": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-107",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "布尔表达式": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-108",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
                         }
                       ],
                       "keywords_must": [],
@@ -2126,42 +1873,6 @@
                             "keywords_forbid": []
                           }
                         },
-                        {
-                          "循环判断": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-113",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "迭代字典": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-114",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "一些迭代工具": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-115",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "跳出循环": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-116",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
                         {
                           "循环中的else子句": {
                             "keywords": [],
@@ -2345,154 +2056,19 @@
                             "keywords_must": [],
                             "keywords_forbid": []
                           }
-                        },
-                        {
-                          "datetime --- 基本的日期和时间类型": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-122",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "zoneinfo --- IANA时区支持": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-123",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
+                        }
+                      ],
+                      "keywords_must": [],
+                      "keywords_forbid": []
+                    }
+                  },
+                  {
+                    "内置类": {
+                      "node_id": "python-3-15",
+                      "keywords": [],
+                      "children": [
                         {
-                          "calendar --- 日历相关函数": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-124",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "collections --- 容器数据类型": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-125",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "collections.abc --- 容器的抽象基类": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-126",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "heapq --- 堆队列算法": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-127",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "bisect --- 数组二分查找算法": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-128",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "array --- 高效的数值数组": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-129",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "weakref --- 弱引用": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-130",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "types --- 动态类型创建和内置类型名称": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-131",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "copy --- 浅层 (shallow) 和深层 (deep) 复制操作": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-132",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "pprint --- 数据美化输出": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-133",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "reprlib --- 另一种repr 实现": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-134",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "enum --- 对枚举的支持": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-135",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "graphlib --- Functionality to operate with graph-like structures": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-136",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        }
-                      ],
-                      "keywords_must": [],
-                      "keywords_forbid": []
-                    }
-                  },
-                  {
-                    "内置类": {
-                      "node_id": "python-3-15",
-                      "keywords": [],
-                      "children": [
-                        {
-                          "列表：list": {
+                          "列表：list": {
                             "keywords": [],
                             "children": [
                               {
@@ -3040,24 +2616,6 @@
                             "keywords_must": [],
                             "keywords_forbid": []
                           }
-                        },
-                        {
-                          "整型：int": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-141",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "字符串：str": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-142",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
                         }
                       ],
                       "keywords_must": [],
@@ -3214,143 +2772,7 @@
                     "三元表达式": {
                       "node_id": "python-3-18",
                       "keywords": [],
-                      "children": [
-                        {
-                          "算术转换": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-156",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "原子": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-157",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "原型": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-158",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "await表达式": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-159",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "幂运算符": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-160",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "一元算术和位运算": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-161",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "二元算术运算符": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-162",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "移位运算": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-163",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "比较运算": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-164",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "布尔运算": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-165",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "赋值表达式": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-166",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "条件表达式": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-167",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "表达式列表": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-168",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "求值顺序": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-169",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "运算符优先级": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-170",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        }
-                      ],
+                      "children": [],
                       "keywords_must": [
                         "三元表达式"
                       ],
@@ -3497,15 +2919,6 @@
                             "keywords_must": [],
                             "keywords_forbid": []
                           }
-                        },
-                        {
-                          "判断字符串是否满足特定的条件": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-183",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
                         }
                       ],
                       "keywords_must": [],
@@ -3855,15 +3268,6 @@
                             "keywords_must": [],
                             "keywords_forbid": []
                           }
-                        },
-                        {
-                          "其他有趣的标准模块": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-202",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
                         }
                       ],
                       "keywords_must": [],
@@ -4099,15 +3503,6 @@
                       "node_id": "python-3-130",
                       "keywords": [],
                       "children": [
-                        {
-                          "数据库概述": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-755",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
                         {
                           "数据库安装配置": {
                             "keywords": [],
@@ -4208,47 +3603,19 @@
                             "keywords_must": [],
                             "keywords_forbid": []
                           }
-                        },
+                        }
+                      ],
+                      "keywords_must": [],
+                      "keywords_forbid": []
+                    }
+                  },
+                  {
+                    "操作系统和环境": {
+                      "node_id": "python-3-131",
+                      "keywords": [],
+                      "children": [
                         {
-                          "数据库编程接口": {
-                            "keywords": [],
-                            "children": [
-                              {
-                                "连接对象": {
-                                  "keywords": [],
-                                  "children": [],
-                                  "node_id": "python-5-415",
-                                  "keywords_must": [],
-                                  "keywords_forbid": []
-                                }
-                              },
-                              {
-                                "游标对象": {
-                                  "keywords": [],
-                                  "children": [],
-                                  "node_id": "python-5-416",
-                                  "keywords_must": [],
-                                  "keywords_forbid": []
-                                }
-                              }
-                            ],
-                            "node_id": "python-4-761",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        }
-                      ],
-                      "keywords_must": [],
-                      "keywords_forbid": []
-                    }
-                  },
-                  {
-                    "操作系统和环境": {
-                      "node_id": "python-3-131",
-                      "keywords": [],
-                      "children": [
-                        {
-                          "OS/Sys": {
+                          "OS/Sys": {
                             "keywords": [],
                             "children": [],
                             "node_id": "python-4-762",
@@ -4564,319 +3931,6 @@
                             "keywords_must": [],
                             "keywords_forbid": []
                           }
-                        },
-                        {
-                          "Django开发案例": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-802",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "Web框架": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-803",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "“Hello World”应用（一个博客）": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-804",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "创建模型来添加数据库服务": {
-                            "keywords": [],
-                            "children": [
-                              {
-                                "设置数据库": {
-                                  "keywords": [],
-                                  "children": [],
-                                  "node_id": "python-5-447",
-                                  "keywords_must": [],
-                                  "keywords_forbid": []
-                                }
-                              }
-                            ],
-                            "node_id": "python-4-805",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "Python应用shell": {
-                            "keywords": [],
-                            "children": [
-                              {
-                                "在Django中使用Python shell": {
-                                  "keywords": [],
-                                  "children": [],
-                                  "node_id": "python-5-448",
-                                  "keywords_must": [],
-                                  "keywords_forbid": []
-                                }
-                              },
-                              {
-                                "测试数据模型": {
-                                  "keywords": [],
-                                  "children": [],
-                                  "node_id": "python-5-449",
-                                  "keywords_must": [],
-                                  "keywords_forbid": []
-                                }
-                              }
-                            ],
-                            "node_id": "python-4-806",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "Django管理应用": {
-                            "keywords": [],
-                            "children": [
-                              {
-                                "设置admin": {
-                                  "keywords": [],
-                                  "children": [],
-                                  "node_id": "python-5-450",
-                                  "keywords_must": [],
-                                  "keywords_forbid": []
-                                }
-                              },
-                              {
-                                "使用admin": {
-                                  "keywords": [],
-                                  "children": [],
-                                  "node_id": "python-5-451",
-                                  "keywords_must": [],
-                                  "keywords_forbid": []
-                                }
-                              }
-                            ],
-                            "node_id": "python-4-807",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "创建博客的用户界面": {
-                            "keywords": [],
-                            "children": [
-                              {
-                                "创建模板": {
-                                  "keywords": [],
-                                  "children": [],
-                                  "node_id": "python-5-452",
-                                  "keywords_must": [],
-                                  "keywords_forbid": []
-                                }
-                              },
-                              {
-                                "创建URL模式": {
-                                  "keywords": [],
-                                  "children": [],
-                                  "node_id": "python-5-453",
-                                  "keywords_must": [],
-                                  "keywords_forbid": []
-                                }
-                              },
-                              {
-                                "创建视图函数": {
-                                  "keywords": [],
-                                  "children": [],
-                                  "node_id": "python-5-454",
-                                  "keywords_must": [],
-                                  "keywords_forbid": []
-                                }
-                              }
-                            ],
-                            "node_id": "python-4-808",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "改进输出": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-809",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "处理用户输入": {
-                            "keywords": [],
-                            "children": [
-                              {
-                                "添加URLconf项": {
-                                  "keywords": [],
-                                  "children": [],
-                                  "node_id": "python-5-455",
-                                  "keywords_must": [],
-                                  "keywords_forbid": []
-                                }
-                              },
-                              {
-                                "视图：处理用户输入": {
-                                  "keywords": [],
-                                  "children": [],
-                                  "node_id": "python-5-456",
-                                  "keywords_must": [],
-                                  "keywords_forbid": []
-                                }
-                              },
-                              {
-                                "跨站点请求伪造": {
-                                  "keywords": [],
-                                  "children": [],
-                                  "node_id": "python-5-457",
-                                  "keywords_must": [],
-                                  "keywords_forbid": []
-                                }
-                              }
-                            ],
-                            "node_id": "python-4-810",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "表单和模型表单": {
-                            "keywords": [],
-                            "children": [
-                              {
-                                "Django表单简介": {
-                                  "keywords": [],
-                                  "children": [],
-                                  "node_id": "python-5-458",
-                                  "keywords_must": [],
-                                  "keywords_forbid": []
-                                }
-                              },
-                              {
-                                "模型表单示例": {
-                                  "keywords": [],
-                                  "children": [],
-                                  "node_id": "python-5-459",
-                                  "keywords_must": [],
-                                  "keywords_forbid": []
-                                }
-                              },
-                              {
-                                "使用ModelForm来生成HTML表单": {
-                                  "keywords": [],
-                                  "children": [],
-                                  "node_id": "python-5-460",
-                                  "keywords_must": [],
-                                  "keywords_forbid": []
-                                }
-                              },
-                              {
-                                "处理ModelForm数据": {
-                                  "keywords": [],
-                                  "children": [],
-                                  "node_id": "python-5-461",
-                                  "keywords_must": [],
-                                  "keywords_forbid": []
-                                }
-                              }
-                            ],
-                            "node_id": "python-4-811",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "视图进阶": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-812",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "*改善外观": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-813",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "*中级Django应用：TweetApprover": {
-                            "keywords": [],
-                            "children": [
-                              {
-                                "安装Twython库": {
-                                  "keywords": [],
-                                  "children": [],
-                                  "node_id": "python-5-462",
-                                  "keywords_must": [],
-                                  "keywords_forbid": []
-                                }
-                              },
-                              {
-                                "URL结构": {
-                                  "keywords": [],
-                                  "children": [],
-                                  "node_id": "python-5-463",
-                                  "keywords_must": [],
-                                  "keywords_forbid": []
-                                }
-                              },
-                              {
-                                "数据模型": {
-                                  "keywords": [],
-                                  "children": [],
-                                  "node_id": "python-5-464",
-                                  "keywords_must": [],
-                                  "keywords_forbid": []
-                                }
-                              },
-                              {
-                                "提交新推文以便审核": {
-                                  "keywords": [],
-                                  "children": [],
-                                  "node_id": "python-5-465",
-                                  "keywords_must": [],
-                                  "keywords_forbid": []
-                                }
-                              },
-                              {
-                                "审核推文": {
-                                  "keywords": [],
-                                  "children": [],
-                                  "node_id": "python-5-466",
-                                  "keywords_must": [],
-                                  "keywords_forbid": []
-                                }
-                              }
-                            ],
-                            "node_id": "python-4-814",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "资源": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-815",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
                         }
                       ],
                       "keywords_must": [
@@ -4961,15 +4015,6 @@
                             "keywords_must": [],
                             "keywords_forbid": []
                           }
-                        },
-                        {
-                          "Tornado开发案例": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-824",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
                         }
                       ],
                       "keywords_must": [
@@ -5889,218 +4934,91 @@
                             "keywords_must": [],
                             "keywords_forbid": []
                           }
-                        },
-                        {
-                          "Flask开发案例": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-835",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
                         }
                       ],
                       "keywords_must": [
                         "flask"
                       ],
                       "keywords_forbid": []
-                    }
-                  }
-                ],
-                "keywords_must": [],
-                "keywords_forbid": []
-              }
-            },
-            {
-              "网络爬虫": {
-                "node_id": "python-2-7",
-                "keywords": [],
-                "children": [
-                  {
-                    "urllib": {
-                      "node_id": "python-3-147",
-                      "keywords": [],
-                      "children": [
-                        {
-                          "处理异常": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-868",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "解析链接": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-869",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "分析Robots协议": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-870",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        }
-                      ],
-                      "keywords_must": [
-                        "urllib"
-                      ],
-                      "keywords_forbid": []
-                    }
-                  },
-                  {
-                    "正则表达式": {
-                      "node_id": "python-3-148",
-                      "keywords": [],
-                      "children": [
-                        {
-                          "RE(Regular Expression )": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-871",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "基础语法": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-872",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "标签匹配常用规则": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-873",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "简介／动机": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-874",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "特殊符号和字符": {
-                            "keywords": [],
-                            "children": [
-                              {
-                                "使用择一匹配符号匹配多个正则表达式模式": {
-                                  "keywords": [],
-                                  "children": [],
-                                  "node_id": "python-5-526",
-                                  "keywords_must": [],
-                                  "keywords_forbid": []
-                                }
-                              },
-                              {
-                                "匹配任意单个字符": {
-                                  "keywords": [],
-                                  "children": [],
-                                  "node_id": "python-5-527",
-                                  "keywords_must": [],
-                                  "keywords_forbid": []
-                                }
-                              },
-                              {
-                                "从字符串起始或者结尾或者单词边界匹配": {
-                                  "keywords": [],
-                                  "children": [],
-                                  "node_id": "python-5-528",
-                                  "keywords_must": [],
-                                  "keywords_forbid": []
-                                }
-                              },
-                              {
-                                "创建字符集": {
-                                  "keywords": [],
-                                  "children": [],
-                                  "node_id": "python-5-529",
-                                  "keywords_must": [],
-                                  "keywords_forbid": []
-                                }
-                              },
-                              {
-                                "限定范围和否定": {
-                                  "keywords": [],
-                                  "children": [],
-                                  "node_id": "python-5-530",
-                                  "keywords_must": [],
-                                  "keywords_forbid": []
-                                }
-                              },
-                              {
-                                "使用闭包操作符实现存在性和频数匹配": {
-                                  "keywords": [],
-                                  "children": [],
-                                  "node_id": "python-5-531",
-                                  "keywords_must": [],
-                                  "keywords_forbid": []
-                                }
-                              },
-                              {
-                                "表示字符集的特殊字符": {
-                                  "keywords": [],
-                                  "children": [],
-                                  "node_id": "python-5-532",
-                                  "keywords_must": [],
-                                  "keywords_forbid": []
-                                }
-                              },
-                              {
-                                "使用圆括号指定分组": {
-                                  "keywords": [],
-                                  "children": [],
-                                  "node_id": "python-5-533",
-                                  "keywords_must": [],
-                                  "keywords_forbid": []
-                                }
-                              },
-                              {
-                                "扩展表示法": {
-                                  "keywords": [],
-                                  "children": [],
-                                  "node_id": "python-5-534",
-                                  "keywords_must": [],
-                                  "keywords_forbid": []
-                                }
-                              }
-                            ],
-                            "node_id": "python-4-875",
+                    }
+                  }
+                ],
+                "keywords_must": [],
+                "keywords_forbid": []
+              }
+            },
+            {
+              "网络爬虫": {
+                "node_id": "python-2-7",
+                "keywords": [],
+                "children": [
+                  {
+                    "urllib": {
+                      "node_id": "python-3-147",
+                      "keywords": [],
+                      "children": [
+                        {
+                          "处理异常": {
+                            "keywords": [],
+                            "children": [],
+                            "node_id": "python-4-868",
+                            "keywords_must": [],
+                            "keywords_forbid": []
+                          }
+                        },
+                        {
+                          "解析链接": {
+                            "keywords": [],
+                            "children": [],
+                            "node_id": "python-4-869",
+                            "keywords_must": [],
+                            "keywords_forbid": []
+                          }
+                        },
+                        {
+                          "分析Robots协议": {
+                            "keywords": [],
+                            "children": [],
+                            "node_id": "python-4-870",
+                            "keywords_must": [],
+                            "keywords_forbid": []
+                          }
+                        }
+                      ],
+                      "keywords_must": [
+                        "urllib"
+                      ],
+                      "keywords_forbid": []
+                    }
+                  },
+                  {
+                    "正则表达式": {
+                      "node_id": "python-3-148",
+                      "keywords": [],
+                      "children": [
+                        {
+                          "RE(Regular Expression )": {
+                            "keywords": [],
+                            "children": [],
+                            "node_id": "python-4-871",
                             "keywords_must": [],
                             "keywords_forbid": []
                           }
                         },
                         {
-                          "一些正则表达式示例": {
+                          "基础语法": {
                             "keywords": [],
                             "children": [],
-                            "node_id": "python-4-876",
+                            "node_id": "python-4-872",
                             "keywords_must": [],
                             "keywords_forbid": []
                           }
                         },
                         {
-                          "更长的正则表达式示例": {
+                          "标签匹配常用规则": {
                             "keywords": [],
                             "children": [],
-                            "node_id": "python-4-877",
+                            "node_id": "python-4-873",
                             "keywords_must": [],
                             "keywords_forbid": []
                           }
@@ -6316,24 +5234,6 @@
                             "keywords_must": [],
                             "keywords_forbid": []
                           }
-                        },
-                        {
-                          "基本用法": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-898",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "高级用法": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-899",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
                         }
                       ],
                       "keywords_must": [
@@ -6537,123 +5437,6 @@
                             "keywords_must": [],
                             "keywords_forbid": []
                           }
-                        },
-                        {
-                          "Scrapy框架介绍": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-915",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "Scrapy入门": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-916",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "Selector的用法": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-917",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "Spider的用法": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-918",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "Downloader Middleware的用法": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-919",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "Spider Middleware的用法": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-920",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "Item Pipeline的用法": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-921",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "Scrapy对接Selenium": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-922",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "Scrapy对接Splash": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-923",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "Scrapy通用爬虫": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-924",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "Scrapyrt的使用": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-925",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "Scrapy对接Docker": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-926",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "Scrapy爬取新浪微博": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-927",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
                         }
                       ],
                       "keywords_must": [
@@ -8434,24 +7217,6 @@
                             "keywords_must": [],
                             "keywords_forbid": []
                           }
-                        },
-                        {
-                          "从多个文件中连接数据": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-1232",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "计算每个文件中值的总和与均值": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-1233",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
                         }
                       ],
                       "keywords_must": [
@@ -8588,15 +7353,6 @@
                       "node_id": "python-3-241",
                       "keywords": [],
                       "children": [
-                        {
-                          "变化的分类": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-1402",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
                         {
                           "包含趋势的序列分析": {
                             "keywords": [],
@@ -8634,34 +7390,6 @@
                             "keywords_forbid": []
                           }
                         },
-                        {
-                          "从时间序列中去除周期性": {
-                            "keywords": [],
-                            "children": [
-                              {
-                                "滤波": {
-                                  "keywords": [],
-                                  "children": [],
-                                  "node_id": "python-5-1326",
-                                  "keywords_must": [],
-                                  "keywords_forbid": []
-                                }
-                              },
-                              {
-                                "差分": {
-                                  "keywords": [],
-                                  "children": [],
-                                  "node_id": "python-5-1327",
-                                  "keywords_must": [],
-                                  "keywords_forbid": []
-                                }
-                              }
-                            ],
-                            "node_id": "python-4-1405",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
                         {
                           "平稳时间序列": {
                             "keywords": [],
@@ -8699,43 +7427,6 @@
                             "keywords_forbid": []
                           }
                         },
-                        {
-                          "使用Python进行时间序列分析": {
-                            "keywords": [],
-                            "children": [
-                              {
-                                "有用的方法": {
-                                  "keywords": [],
-                                  "children": [],
-                                  "node_id": "python-5-1331",
-                                  "keywords_must": [],
-                                  "keywords_forbid": []
-                                }
-                              },
-                              {
-                                "自回归过程": {
-                                  "keywords": [],
-                                  "children": [],
-                                  "node_id": "python-5-1332",
-                                  "keywords_must": [],
-                                  "keywords_forbid": []
-                                }
-                              },
-                              {
-                                "估计AR过程的参数": {
-                                  "keywords": [],
-                                  "children": [],
-                                  "node_id": "python-5-1333",
-                                  "keywords_must": [],
-                                  "keywords_forbid": []
-                                }
-                              }
-                            ],
-                            "node_id": "python-4-1407",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
                         {
                           "混合ARMA模型": {
                             "keywords": [],
@@ -8753,24 +7444,6 @@
                             "keywords_must": [],
                             "keywords_forbid": []
                           }
-                        },
-                        {
-                          "一个特殊的场景": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-1410",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
-                        },
-                        {
-                          "数据缺失": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "python-4-1411",
-                            "keywords_must": [],
-                            "keywords_forbid": []
-                          }
                         }
                       ],
                       "keywords_must": [],