fixed node id format errors in children node

data/1.Java初阶/1.Java概览/1.编辑Java源代码/config.json

 {
-  "node_id": "java-e16d823e787d40eeae695e9af8ee47cf",
+  "node_id": "java-d89b878493484f188f9853079357fdb8",
   "keywords": [
     "输出",
     "main",

data/1.Java初阶/1.Java概览/2.编译Java程序/config.json

 {
-  "node_id": "java-bd39af30b80f41be83e406bf49ed02e3",
+  "node_id": "java-437728ce2bae4796b877bca961fb1893",
   "keywords": [],
   "children": [],
   "export": [],

data/1.Java初阶/1.Java概览/3.Java的运行机制/config.json

 {
-  "node_id": "java-78400f646a084398a990070106c0bcc2",
+  "node_id": "java-0a484e43a5cb4428a36dd70233ed94f4",
   "keywords": [],
   "children": [],
   "export": [

data/1.Java初阶/1.Java概览/4.根据CLASSPATH环境变量定位类/config.json

 {
-  "node_id": "java-c45177323ffc47f28a8351dd016c55bc",
+  "node_id": "java-0b472b5aebdb48599b913a4a3c7db4fd",
   "keywords": [],
   "children": [],
   "export": [

data/1.Java初阶/1.Java概览/config.json

 {
-  "node_id": "java-d2bffd0bc5f344d18e38d20da5d0825f",
+  "node_id": "java-c9b23c7321ed47b093786462e70a4e64",
   "keywords": [],
   "children": [],
   "export": [],

data/1.Java初阶/10.类和接口/1.类和面向对象/config.json

 {
   "keywords": [],
   "children": [],
-  "node_id": "java-6245114372574890b2d4ad8bea4d483b",
+  "node_id": "java-60ec4eb3dd2c40f184375741aff54195",
   "export": [
     "classic.json"
   ]

data/1.Java初阶/10.类和接口/2.抽象类/config.json

@@ -5,5 +5,5 @@
     "接口"
   ],
   "children": [],
-  "node_id": "java-846097fc977f4450a363aafb638e8c30"
+  "node_id": "java-93a99eedeae048099b7b20b8fa7626be"
 }
\ No newline at end of file

data/1.Java初阶/10.类和接口/3.接口/config.json

@@ -5,7 +5,7 @@
     "接口"
   ],
   "children": [],
-  "node_id": "java-287339cc4b904f798037e080ac5c53c2",
+  "node_id": "java-e589173b4d414db595805d1c29c0b43a",
   "export": [
     "interface.json"
   ]

data/1.Java初阶/10.类和接口/4.匿名类/config.json

@@ -5,7 +5,7 @@
     "lambda"
   ],
   "children": [],
-  "node_id": "java-8a1e6783509545b7ba9d64e0c6025a6a",
+  "node_id": "java-e13ee73a5fb444a69a3083eeb4ffb19f",
   "export": [
     "anonymous.json"
   ]

data/1.Java初阶/10.类和接口/config.json

 {
   "keywords": [],
   "children": [],
-  "node_id": "java-4ac81e64cadd4f25886366d769385b30"
+  "node_id": "java-67340874077242ea8ee62323588eebe2"
 }
\ No newline at end of file

data/1.Java初阶/11.IO初步/1.字节流/config.json

 {
-  "node_id": "java-84d6860a1aff452cbf1857d7a745209e",
+  "node_id": "java-ce50420f95944b048dbabc8ff571b3e6",
   "keywords": [],
   "children": [],
   "export": [

data/1.Java初阶/11.IO初步/2.File类/config.json

 {
-  "node_id": "java-9ace15fc5a0343429120704bedfd6812",
+  "node_id": "java-66c26d8967534b0ba8240749abac2e4d",
   "keywords": [],
   "children": [],
   "export": [

data/1.Java初阶/11.IO初步/config.json

 {
-  "node_id": "java-d6b4921c0ddb48b296ec51aaa1f20d64",
+  "node_id": "java-79452b55bfc2490e8e53cbd746b33d79",
   "keywords": []
 }
\ No newline at end of file

data/1.Java初阶/2.Java的基本语法/1.Java的基本语法格式/config.json

 {
-  "node_id": "java-e1152affe31745429dad9816771e70a5",
+  "node_id": "java-09f401c0e4dd42eab5d1a93e4238c2b6",
   "keywords": [
     "语法",
     "Hello World"

data/1.Java初阶/2.Java的基本语法/2.Java中的注释/config.json

 {
-  "node_id": "java-ed20d8f9663a410b95cf096cef509664",
+  "node_id": "java-b7c4e8fa2c094e55b8bc6688ead1e0c4",
   "keywords": [
     "注释 "
   ],

data/1.Java初阶/2.Java的基本语法/3.Java中的关键字/config.json

 {
-  "node_id": "java-5e227c99fdb04e11a49d267cd462684b",
+  "node_id": "java-c3a6fc61a9d94f74a6845484ea5f3632",
   "keywords": [
     "关键字"
   ],

data/1.Java初阶/2.Java的基本语法/config.json

 {
-  "node_id": "java-052295f40f1141709ac9897350b662ca",
+  "node_id": "java-58baedf2dc374aeda83825bbbb8dbbb3",
   "keywords": [],
   "children": [],
   "export": [],

data/1.Java初阶/3.Java中的变量与常量/1.变量的定义/config.json

 {
-  "node_id": "java-067f3804b0df436eb9a6969af54a0ffd",
+  "node_id": "java-328003362ff049d4bd50843dff91e679",
   "keywords": [
     "变量",
     "赋值",

data/1.Java初阶/3.Java中的变量与常量/2.变量的数据类型/config.json

 {
-  "node_id": "java-107733a2dd414cd4a33dbfb2e46281e1",
+  "node_id": "java-297a7cf8cc6e42199102f13657cb862b",
   "keywords": [
     "变量",
     "类型"

data/1.Java初阶/3.Java中的变量与常量/3.Java中的常量/config.json

 {
-  "node_id": "java-79083b80f5be46ab9dc014c98104b69b",
+  "node_id": "java-32b2d367cb564d05bc0ffcfd69590333",
   "keywords": [
     "常量",
     "定义",

data/1.Java初阶/3.Java中的变量与常量/4.变量的作用域/config.json

 {
-  "node_id": "java-02e5f4a31b434461ba257a92117b7f0a",
+  "node_id": "java-0875d8cec2484c63b75d2c15421863f0",
   "keywords": [
     "常量",
     "定义",

data/1.Java初阶/3.Java中的变量与常量/config.json

 {
-  "node_id": "java-7b91489a464646a1a7a9c3044be66aa3",
+  "node_id": "java-c6c9e904b3b14b6ca4dbda663b9673a8",
   "keywords": [],
   "children": [],
   "export": [],

data/1.Java初阶/4.Java中的运算符/1.比较运算符/config.json

 {
-  "node_id": "java-40605321a90d400abc5afda44f31c184",
+  "node_id": "java-e700cf94c46d4826a3b3b2c2be34e665",
   "keywords": [
     "大于",
     "小于",

data/1.Java初阶/4.Java中的运算符/2.逻辑运算符/config.json

 {
-  "node_id": "java-02cf47f86d194d9a88a91e267370a5d2",
+  "node_id": "java-1a208cf9b0704748b22845d2700d96e0",
   "keywords": [
     "逻辑运算符",
     "组合",

data/1.Java初阶/4.Java中的运算符/3.算术运算符/config.json

 {
-  "node_id": "java-b95d6f801e7744e88dce333ada0da7cb",
+  "node_id": "java-31eaa007f6904e009e5e8824c4ed0507",
   "keywords": [
     "算术运算符",
     "优先级"

data/1.Java初阶/4.Java中的运算符/config.json

 {
-  "node_id": "java-7c363476a5f9428880a703526e65c06e",
+  "node_id": "java-6ca25b3e376145a6afd8833ac9b8921f",
   "keywords": [],
   "children": [],
   "export": [],

data/1.Java初阶/5.选择结构语句/1.if条件语句/config.json

 {
-  "node_id": "java-1bd28ab7bd0c49a48a64cf1b7d2db8e5",
+  "node_id": "java-8c6063c4d3e84916828fd983ea0bd212",
   "keywords": [
     "条件",
     "控制",

data/1.Java初阶/5.选择结构语句/2.switch条件语句/config.json

 {
-  "node_id": "java-d7ec0874b36f405a83312de7d1acfd41",
+  "node_id": "java-53341a5e0fd043e2899176a9d07e597f",
   "keywords": [
     "条件",
     "控制",

data/1.Java初阶/5.选择结构语句/config.json

 {
-  "node_id": "java-c8e3ba6ad5ea4616a33a70d3f9399d09",
+  "node_id": "java-1ff6eb0134fc44a3a528ae4dce554714",
   "keywords": [],
   "children": [],
   "export": [],

data/1.Java初阶/6.循环结构语句/1.dowhile循环/config.json

 {
-  "node_id": "java-11e6f3d28ed14d9382a397e2c5bcbe73",
+  "node_id": "java-03e8cd4b4ee44fe3abd6dc600d1b6bc1",
   "keywords": [
     "循环",
     "do",

data/1.Java初阶/6.循环结构语句/2.for循环语句/config.json

 {
-  "node_id": "java-4f59f0877fec4c6ca6d6426fe5e02981",
+  "node_id": "java-192095130ab949feb1fd652b10ccffba",
   "keywords": [
     "循环",
     "for"

data/1.Java初阶/6.循环结构语句/config.json

 {
-  "node_id": "java-c5975909c2f84aad8081eadc3580a53a",
+  "node_id": "java-7d83c1529a9b434484a6061a20a94ce8",
   "keywords": [],
   "children": [],
   "export": [],

data/1.Java初阶/7.集合/1.Collection接口/config.json

 {
-  "node_id": "java-39d21ebbb6574d489a8b53eb78ae5075",
+  "node_id": "java-780a59c5a1964fb5be810728f420b522",
   "keywords": [
     "集合",
     "collection"

data/1.Java初阶/7.集合/10.树集/config.json

 {
-  "node_id": "java-ec6f03d161eb493aa5be60fd7a15014a",
+  "node_id": "java-bf4acd7270ee44a282ca9416a11f3b70",
   "keywords": [
     "集合",
     "树"

data/1.Java初阶/7.集合/11.映射/config.json

 {
-  "node_id": "java-5e23eb6283b542229606e55e3aa70b1a",
+  "node_id": "java-bcc7d15f8fd4427e8a55401d0622af6d",
   "keywords": [
     "集合",
     "映射",
@@ -10,7 +10,7 @@
       "基本映射操作": {
         "keywords": [],
         "children": [],
-        "node_id": "java-80f2c854a2eb484aab8f9b793999c99e",
+        "node_id": "java-9a5dfe893bcc40279a0896a5514893dd",
         "title": "基本映射操作"
       }
     },
@@ -18,7 +18,7 @@
       "更新映射条目": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+        "node_id": "java-7b14431d609d4fd5a2c2f1303960d3dd",
         "title": "更新映射条目"
       }
     },
@@ -26,7 +26,7 @@
       "映射视图": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+        "node_id": "java-42dc24e7d9484cf0a7bd7578c4fb4661",
         "title": "映射视图"
       }
     },
@@ -34,28 +34,28 @@
       "弱散列映射": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+        "node_id": "java-a7f1aa68d42d43dc9b5a592518261b27"
       }
     },
     {
       "链接散列集与映射": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+        "node_id": "java-12177893c90043119bdd18dca1c8f7b9"
       }
     },
     {
       "枚举集与映射": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+        "node_id": "java-60e5a95187ce472ca72ae4dd87c2fa95"
       }
     },
     {
       "标识散列映射": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+        "node_id": "java-d900a451137049e8bac6d8162b7837fa"
       }
     }
   ],

data/1.Java初阶/7.集合/12.遗留的集合/config.json

 {
-  "node_id": "java-ef4a7b762d7a4e04b156f0741e0bfdca",
+  "node_id": "java-64ad977e4aa1459084ae79287b34d11f",
   "keywords": [],
   "children": [
     {
       "属性映射": {
         "keywords": [],
         "children": [],
-        "node_id": "java-3b67670fa36943f086358d867932c6ab",
+        "node_id": "java-8a175778609341ca981beb26f01dc3ff",
         "title": "属性映射"
       }
     },
@@ -14,7 +14,7 @@
       "栈": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+        "node_id": "java-3e681e1761964ba68af57158cf4a1184",
         "title": "栈"
       }
     },
@@ -22,7 +22,7 @@
       "位集": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+        "node_id": "java-0b74735a66c34deb9243f321544ab0c2",
         "title": "位集"
       }
     }

data/1.Java初阶/7.集合/13.编写equals和hashCode/config.json

 {
-  "node_id": "java-f3ad570814b549d6b0d5a28fb298c279",
+  "node_id": "java-2684c2f0edc940d08cc0b00516fe9a98",
   "keywords": [
     "判等",
     "hash",

data/1.Java初阶/7.集合/14.使用TreeMap/config.json

 {
-  "node_id": "java-6511b740e034409d98de6f224805ddd5",
+  "node_id": "java-5533fe796b5c4f5c880f350159aa3f52",
   "keywords": [
     "集合",
     "TreeMap",

data/1.Java初阶/7.集合/15.使用Properties/config.json

 {
-  "node_id": "java-b7b1037228554cadac23f38be9be40cd",
+  "node_id": "java-e8496396030e4cfc82ab252d5e5c24d1",
   "keywords": [
     "属性",
     "字典",

data/1.Java初阶/7.集合/16.使用Deque/config.json

 {
-  "node_id": "java-689fe247c4504632a3365d4e437bca77",
+  "node_id": "java-9bfa749c8fd6407ea395eae31b0a590a",
   "keywords": [
     "集合",
     "队列"

data/1.Java初阶/7.集合/2.List接口/config.json

 {
-  "node_id": "java-72ac1cff9fa0483daebfd047ceba892a",
+  "node_id": "java-ac869ea4b9d445d5b1eca92662338b5d",
   "keywords": [
     "集合",
     "list",
@@ -10,7 +10,7 @@
       "List接口简介": {
         "keywords": [],
         "children": [],
-        "node_id": "java-9027b2dc889a4898b4cc4197d6b2fe21",
+        "node_id": "java-7b567a1bb1ab49f4974c96165c8070a5",
         "title": "List接口简介"
       }
     },
@@ -18,7 +18,7 @@
       "ArrayList集合": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+        "node_id": "java-e1d0882b11d44d298d9f19cbb40bd702",
         "title": "ArrayList集合"
       }
     },
@@ -26,7 +26,7 @@
       "LinkedList集合": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+        "node_id": "java-5fc075f082944eca9c9ded7ffd3c2720",
         "title": "LinkedList集合"
       }
     }

data/1.Java初阶/7.集合/3.Collection集合遍历/config.json

 {
-  "node_id": "java-8e6db42c1f904497b0328d69cc4d7269",
+  "node_id": "java-07b7d18ada2e45f6b44241dcdedcaf36",
   "keywords": [
     "集合",
     "迭代",
@@ -10,7 +10,7 @@
       "Iterator遍历集合": {
         "keywords": [],
         "children": [],
-        "node_id": "java-ba1b82874f154652bffd62c7b7b542ab",
+        "node_id": "java-e768e357d1c74fd987aeda063f832027",
         "title": "Iterator遍历集合"
       }
     },
@@ -18,7 +18,7 @@
       "foreach遍历集合": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+        "node_id": "java-5b8ef73fc3cd424d8baa20cf4f40a058",
         "title": "foreach遍历集合"
       }
     },
@@ -26,7 +26,7 @@
       "JDK 8的forEach遍历集合": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+        "node_id": "java-ac21bad4cb8644fb8c2e79a57124b786",
         "title": "JDK 8的forEach遍历集合"
       }
     }

data/1.Java初阶/7.集合/4.Set接口/config.json

 {
-  "node_id": "java-ea95600433e647798f34c007f4e5b563",
+  "node_id": "java-1caba7d25a264c549455460ead1914de",
   "keywords": [
     "集合",
     "set"
@@ -9,7 +9,7 @@
       "Set接口简介": {
         "keywords": [],
         "children": [],
-        "node_id": "java-bd790481aa4d405383426891c6e4ef2a",
+        "node_id": "java-7fe9efd0f29845988a340e9ca2058d56",
         "title": "Set接口简介"
       }
     },
@@ -17,7 +17,7 @@
       "HashSet集合": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+        "node_id": "java-b7b38aca55834aeb8811d14d23db56e6",
         "title": "HashSet集合"
       }
     },
@@ -25,7 +25,7 @@
       "TreeSet集合": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+        "node_id": "java-87831236dd0343348aa1889c75f7cfa7",
         "title": "TreeSet集合"
       }
     }

data/1.Java初阶/7.集合/5.Map接口/config.json

 {
-  "node_id": "java-dd73a6ef0624460fa34a19548a379eca",
+  "node_id": "java-01692980eb9f475fae272725ac32417d",
   "keywords": [
     "集合",
     "字典",
@@ -10,7 +10,7 @@
       "Map接口简介": {
         "keywords": [],
         "children": [],
-        "node_id": "java-5ec3563f06184fa29eb5748b33ca4450",
+        "node_id": "java-de6162ca0e904b8aa516bd998f6ea1dd",
         "title": "Map接口简介"
       }
     },
@@ -18,7 +18,7 @@
       "HashMap集合": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+        "node_id": "java-3f973255f01e485abbb590f9b3afb5ce",
         "title": "HashMap集合"
       }
     },
@@ -26,7 +26,7 @@
       "Map集合遍历": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+        "node_id": "java-c5d2b19317b7484090c2712bede32fcf",
         "title": "Map集合遍历"
       }
     },
@@ -34,14 +34,14 @@
       "TreeMap集合": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+        "node_id": "java-2ce95dca83724d1490add354c457cb6e"
       }
     },
     {
       "Properties集合": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+        "node_id": "java-aa7eb0b89a874890819f8bb488e991ac"
       }
     }
   ],

data/1.Java初阶/7.集合/6.Java集合框架/config.json

 {
-  "node_id": "java-8140e7596be44a9ab799699610e130a7",
+  "node_id": "java-bb4c325a9a26431daecf186e5aa75c4f",
   "keywords": [],
   "children": [
     {
       "集合接口与实现分离": {
         "keywords": [],
         "children": [],
-        "node_id": "java-9d394513b1664cfc9686a8593f23975c",
+        "node_id": "java-b3b8d914efde46c3873925e60645491c",
         "title": "集合接口与实现分离"
       }
     },
@@ -14,7 +14,7 @@
       "泛型实用方法": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+        "node_id": "java-c68ba4cc3d3649e98528e66126ad1493",
         "title": "泛型实用方法"
       }
     }

data/1.Java初阶/7.集合/7.链表/config.json

 {
-  "node_id": "java-0bda6e52d31b489882ead3df46f3bede",
+  "node_id": "java-8b417d3ac3eb493d999e5e2ee7de5823",
   "keywords": [
     "集合",
     "链表"

data/1.Java初阶/7.集合/8.数组列表/config.json

 {
-  "node_id": "java-9574759756834e61939bcc36a66a8ef7",
+  "node_id": "java-28b47ba6f15947fba88d86209dad8e4e",
   "keywords": [
     "集合",
     "ArrayList"

data/1.Java初阶/7.集合/9.散列集/config.json

 {
-  "node_id": "java-9f72cd8a7a0545b19125b8e7b80eb898",
+  "node_id": "java-ce8ef45591f7455fab95d5781462e4c7",
   "keywords": [
     "集合",
     "HashSet"

data/1.Java初阶/7.集合/config.json

 {
-  "node_id": "java-22c1e05d83854618bd8189dc7bba5568",
+  "node_id": "java-351003baf73c49ed90e423c4a6eb89ac",
   "keywords": [],
   "children": [],
   "export": [],

data/1.Java初阶/8.操作符/1.算术操作符/config.json

 {
-  "node_id": "java-067d4f9f83d249088646927243d1c070",
+  "node_id": "java-a786f8baa2ea47438037300dfddc9b8e",
   "keywords": [
     "算术操作符"
   ],
@@ -8,7 +8,7 @@
       "一元加、减操作符": {
         "keywords": [],
         "children": [],
-        "node_id": "java-a6e0d49965584c4392cff18cb591a332",
+        "node_id": "java-7859cfa21b8147bb8a80738f2f954f7e",
         "title": "一元加、减操作符"
       }
     }

data/1.Java初阶/8.操作符/2.自动递增和递减/config.json

 {
-  "node_id": "java-970ef3c3041f4503b968311f1405a507",
+  "node_id": "java-c3db60f53a0249f3819470968128af94",
   "keywords": [
     "递增",
     "递减"

data/1.Java初阶/8.操作符/3.关系操作符/config.json

 {
-  "node_id": "java-7718848181304d78a25acd261b97f036",
+  "node_id": "java-f468db08637e4854b45c2f6e8ae49c3b",
   "keywords": [
     "关系运算"
   ],
@@ -8,7 +8,7 @@
       "测试对象的等价性": {
         "keywords": [],
         "children": [],
-        "node_id": "java-59cbb9821eed4c28a3e365e8ce963865",
+        "node_id": "java-fbab166b254d47389b0089d6e96c8dd3",
         "title": "测试对象的等价性"
       }
     }

data/1.Java初阶/8.操作符/4.逻辑操作符/config.json

 {
-  "node_id": "java-8a184fa3b2ef41ebaff668fdc37051d2",
+  "node_id": "java-b2305e88f5294b1a935dbfdc782b12d5",
   "keywords": [
     "逻辑",
     "布尔",
@@ -11,7 +11,7 @@
       "短路": {
         "keywords": [],
         "children": [],
-        "node_id": "java-633e7df8ce304791b9981fccb636b3e8",
+        "node_id": "java-5a2b622612964c269e82c1cce20d7dda",
         "title": "短路"
       }
     }

data/1.Java初阶/8.操作符/5.按位操作符/config.json

 {
-  "node_id": "java-8fbd566aa3494dafafcfdd80a36dc571",
+  "node_id": "java-e705f19959c64a338b83c08c8b9994de",
   "keywords": [
     "位运算",
     "bit",

data/1.Java初阶/8.操作符/6.移位操作符/config.json

 {
-  "node_id": "java-7fcb4dfbecf241a8a61bb04249066634",
+  "node_id": "java-326900ffcf1843c0af70c15343b86b3a",
   "keywords": [
     "位运算",
     "左移",

data/1.Java初阶/8.操作符/7.三元操作符if-else/config.json

 {
-  "node_id": "java-3a30857c92ec4dbe92f63ec17e4a23ba",
+  "node_id": "java-28a8e375f8b24d53b2c2771e2016b43e",
   "keywords": [
     "逻辑",
     "三元运算符"

data/1.Java初阶/8.操作符/8.字符串操作符 + 和 +=/config.json

 {
-  "node_id": "java-61e0d057216e4447a1ea3abfcad41597",
+  "node_id": "java-d47594e1060046938b05ae92495678f7",
   "keywords": [
     "字符串"
   ],

data/1.Java初阶/8.操作符/config.json

 {
-  "node_id": "java-49691291d1ca4476a49218f12b368fb3",
+  "node_id": "java-455a80a3044144498a007d233d657fac",
   "keywords": [],
   "children": [
     {
       "File类的常用方法": {
         "keywords": [],
         "children": [],
-        "node_id": "java-1deea1d131b84d06a941a2b99ee2cf5b",
+        "node_id": "java-dc3cf5fcdc854ab9b30a8fa40f85b689",
         "title": "File类的常用方法"
       }
     },
@@ -14,7 +14,7 @@
       "遍历目录下的文件": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+        "node_id": "java-c1217e264a7144329bd5a0e676c7c7a5",
         "title": "遍历目录下的文件"
       }
     },
@@ -22,7 +22,7 @@
       "删除文件及目录": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+        "node_id": "java-0724f608c21e4acb8fb178fe08842a81",
         "title": "删除文件及目录"
       }
     },
@@ -30,56 +30,56 @@
       "创建文件对象": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+        "node_id": "java-fcacf37e120c4439a18ba1da946ba669"
       }
     },
     {
       "文件操作": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+        "node_id": "java-20e3d10b106e4ffb939c8954e0eb87b9"
       }
     },
     {
       "文件夹操作": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+        "node_id": "java-32e4bbe2ce494f788f53323b563363ea"
       }
     },
     {
       "目录列表器": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+        "node_id": "java-d52808509c0945a3a2d55cff15b1ef83"
       }
     },
     {
       "目录实用工具": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+        "node_id": "java-cd0bb2b5acbf4a19828ab9affde31050"
       }
     },
     {
       "目录的检查及创建": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+        "node_id": "java-7bb5e225e718418c89735c1276f7d733"
       }
     },
     {
       "文件的创建与删除": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+        "node_id": "java-e4f22a8dd16140cf82d1ca8d673f9d9d"
       }
     },
     {
       "获取文件信息": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+        "node_id": "java-fb84c640196e4811811aa263ec79c3c2"
       }
     }
   ],

data/1.Java初阶/9.控制执行流程/1.if-else/config.json

 {
-  "node_id": "java-b176dd68d8184c19a2b9e0da24fb0cc2",
+  "node_id": "java-e90e25d78e0f4f7686de5b2aa9542425",
   "keywords": [
     "流程控制",
     "if",

data/1.Java初阶/9.控制执行流程/2.for/config.json

 {
-  "node_id": "java-79bef855ee3d4413a2bb63bc9cba7bdc",
+  "node_id": "java-ed07245264a748ba88bda084c4a49af2",
   "keywords": [
     "流程控制",
     "for",

data/1.Java初阶/9.控制执行流程/3.switch/config.json

 {
-  "node_id": "java-6d36ce3817c141dea6187c23fd76fe97",
+  "node_id": "java-40da3260004c4df0bcb21d2696babd91",
   "keywords": [
     "流程控制",
     "switch"

data/1.Java初阶/9.控制执行流程/4.通过异常处理错误/config.json

 {
-  "node_id": "java-cd80c24d159e4e20abb460d96505c6ce",
+  "node_id": "java-1d75534b02294c87ad0bbe42882cd5fc",
   "keywords": [
     "异常",
     "错误",
@@ -12,7 +12,7 @@
       "概念": {
         "keywords": [],
         "children": [],
-        "node_id": "java-74dba10624904700bca41dd2cfab0d17",
+        "node_id": "java-04f92fa0fa5049e2ab32dbab5d19d51e",
         "title": "概念"
       }
     },
@@ -24,7 +24,7 @@
             "try块": {
               "keywords": [],
               "children": [],
-              "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+              "node_id": "java-3b4d8e06f2f2474b961657a37b0370e6",
               "title": "try块"
             }
           },
@@ -32,32 +32,32 @@
             "异常处理程序": {
               "keywords": [],
               "children": [],
-              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+              "node_id": "java-874b803144524caa8102ca7750e7b4cd"
             }
           },
           {
             "f?inally子句": {
               "keywords": [],
               "children": [],
-              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+              "node_id": "java-a6bc70bab1814c5e9a4442638b5fb3a6"
             }
           },
           {
             "try-with-Resources语句": {
               "keywords": [],
               "children": [],
-              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+              "node_id": "java-a7deef22e308455a8f82f774578cf8c6"
             }
           },
           {
             "分析堆栈轨迹元素": {
               "keywords": [],
               "children": [],
-              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+              "node_id": "java-348b03e2cf704f3d9117b5730a2c35a4"
             }
           }
         ],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+        "node_id": "java-436372bdcd714f248a36c523ccf37af4",
         "title": "捕获异常"
       }
     },
@@ -65,14 +65,14 @@
       "创建自定义异常": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+        "node_id": "java-1e7380f1e8c54f1e912bdd8cb21e1d77"
       }
     },
     {
       "异常说明": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+        "node_id": "java-028b4a4f45754281a55e611e3bac583a"
       }
     },
     {
@@ -83,25 +83,25 @@
             "栈轨迹": {
               "keywords": [],
               "children": [],
-              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+              "node_id": "java-d1c703f958794ebf818e288556056da7"
             }
           },
           {
             "重新抛出异常": {
               "keywords": [],
               "children": [],
-              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+              "node_id": "java-c7b39e93387445bdab719ae1668a4a93"
             }
           },
           {
             "异常链": {
               "keywords": [],
               "children": [],
-              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+              "node_id": "java-7613e54fb5dd4df5b5a852edbfbfaaa5"
             }
           }
         ],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+        "node_id": "java-617b8b0c85294eedaa04e3646ca6cb67"
       }
     },
     {
@@ -112,11 +112,11 @@
             "特例: RuntimeException（运行时异常）": {
               "keywords": [],
               "children": [],
-              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+              "node_id": "java-691553444dfa450db57bc8b5e50826c8"
             }
           }
         ],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+        "node_id": "java-bcc14692e4c14eec864e363f999b9d51"
       }
     },
     {
@@ -127,25 +127,25 @@
             "finally用来做什么": {
               "keywords": [],
               "children": [],
-              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+              "node_id": "java-35a3a8f11c2a475fb7fb13736452a19a"
             }
           },
           {
             "在return中使用finally": {
               "keywords": [],
               "children": [],
-              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+              "node_id": "java-bdedb324193c4307a7314dab466960ae"
             }
           },
           {
             "缺憾：异常丢失": {
               "keywords": [],
               "children": [],
-              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+              "node_id": "java-d779b96d2ef9421ba60e4f27808e769c"
             }
           }
         ],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+        "node_id": "java-7d03424b4a99431ebe22b8b295ecb6ff"
       }
     },
     {
@@ -156,25 +156,25 @@
             "使用构造器执行初始化": {
               "keywords": [],
               "children": [],
-              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+              "node_id": "java-96e6e03df507484b89836c3828c9dfea"
             }
           },
           {
             "构造器重载": {
               "keywords": [],
               "children": [],
-              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+              "node_id": "java-3b89522eac5f4fe89add9f13fad18d56"
             }
           }
         ],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+        "node_id": "java-d5654a19501c48d59bb8193077815c46"
       }
     },
     {
       "异常匹配": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+        "node_id": "java-c0520c69b8874f8dada37e55b858607a"
       }
     },
     {
@@ -185,39 +185,39 @@
             "历史": {
               "keywords": [],
               "children": [],
-              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+              "node_id": "java-6671348d414240e590d152dd2e4e6769"
             }
           },
           {
             "观点": {
               "keywords": [],
               "children": [],
-              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+              "node_id": "java-5a7ea594978d4b30a9fd25b6982820af"
             }
           },
           {
             "把异常传递给控制台": {
               "keywords": [],
               "children": [],
-              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+              "node_id": "java-cbd912d461004dbe9774afad16c04cfc"
             }
           },
           {
             "把“受检查异常”转换为“不受检查的异常”": {
               "keywords": [],
               "children": [],
-              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+              "node_id": "java-57c2e32d67094e4c832eba196c5f238d"
             }
           }
         ],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+        "node_id": "java-9ec1b538ac3849b192d9f3f47ee68fc9"
       }
     },
     {
       "异常使用指南": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+        "node_id": "java-e3c6185529e04d10aa03f5890b8d6ff4"
       }
     }
   ],

data/1.Java初阶/9.控制执行流程/5.函数/config.json

 {
-  "node_id": "java-57727de6d6194b8b8aa3d295e687c510",
+  "node_id": "java-41bd2a91b5bc4faba75c8e3e7496eaeb",
   "keywords": [
     "函数",
     "function"

data/1.Java初阶/9.控制执行流程/config.json

 {
-  "node_id": "java-bafd95feb9e349019012c0ec055f09d3",
+  "node_id": "java-6d5d4c761b1f4ff08a81814d8341fd8b",
   "keywords": [],
   "children": [],
   "export": [],

data/1.Java初阶/config.json

 {
-  "node_id": "java-5bf10223efbe4f1cbfbde20a951dc48c",
+  "node_id": "java-1c84b22c0a9044c285bdf6b308199377",
   "keywords": [],
   "title": "Java初阶"
 }
\ No newline at end of file

data/2.Java中阶/1.IO/1.流概述/config.json

 {
-  "node_id": "java-6da603558a424170816e84f9fd64ae31",
+  "node_id": "java-89f14be2c92f40afb5ec1c8ae77940bc",
   "keywords": [
     "流",
     "stream",

data/2.Java中阶/1.IO/2.RandomAccessFile/config.json

 {
-  "node_id": "java-ec591c6ce5d7489791a18733f6bb7795",
+  "node_id": "java-1b40f847cf24424d85b4ae7e48e17422",
   "keywords": [
     "随机",
     "访问",

data/2.Java中阶/1.IO/3.输入输出流/config.json

 {
-  "node_id": "java-46de4fc1b41e46bdaf36a979f81a64bb",
+  "node_id": "java-4b04dd802481472d986a24e729c14c10",
   "keywords": [
     "input",
     "output",
@@ -12,7 +12,7 @@
       "输入流": {
         "keywords": [],
         "children": [],
-        "node_id": "java-a397c10e1a904c419811483b97c8d8b9",
+        "node_id": "java-94e779e4d80b4f0baa4075e751887af9",
         "title": "输入流"
       }
     },
@@ -20,7 +20,7 @@
       "输出流": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+        "node_id": "java-457967406b75444fb50fa3d10532d5a4",
         "title": "输出流"
       }
     }

data/2.Java中阶/1.IO/4.文件输入输出流/config.json

 {
-  "node_id": "java-2b49c706058e459eba5a3eb8fe359aab",
+  "node_id": "java-f197e3e73bd543e9998b9165d8b75489",
   "keywords": [
     "file",
     "input",
@@ -15,7 +15,7 @@
       "FileInputStream类与FileOutputStream类": {
         "keywords": [],
         "children": [],
-        "node_id": "java-a42ac36c7aae462f9ef8edf8b6212528",
+        "node_id": "java-19cb677658ce44b485fde2312918307d",
         "title": "FileInputStream类与FileOutputStream类"
       }
     },
@@ -23,7 +23,7 @@
       "FileReader类与FileWriter类": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+        "node_id": "java-aaf559d9184d4661b38bdecf337a4074",
         "title": "FileReader类与FileWriter类"
       }
     }

data/2.Java中阶/1.IO/5.对象序列化/config.json

 {
-  "node_id": "java-3f3fdd689e5e447da5dae827492cc46c",
+  "node_id": "java-a187d2bdd96c45918fef5cdac912f43c",
   "keywords": [
     "序列化",
     "serialize",

data/2.Java中阶/1.IO/6.ZIP压缩输入输出流/config.json

 {
-  "node_id": "java-4978ad4ba9eb4a44b7820841c7fc7102",
+  "node_id": "java-3fba5723c2bc410d94f47867f1823d60",
   "keywords": [
     "zip",
     "unzip",
@@ -15,7 +15,7 @@
       "压缩文件": {
         "keywords": [],
         "children": [],
-        "node_id": "java-c2a40bea599142e1bafe5c65e5f49e92",
+        "node_id": "java-c52b581fb95f4cce9b56aabc8ca2d9b8",
         "title": "压缩文件"
       }
     },
@@ -23,7 +23,7 @@
       "解压缩ZIP文件": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+        "node_id": "java-9d2d218f2742480d88017f2f65e19280",
         "title": "解压缩ZIP文件"
       }
     }

data/2.Java中阶/1.IO/7.InputStream类型/config.json

 {
-  "node_id": "java-a70c3c294b284d5fad6cd6a270b9a7fe",
+  "node_id": "java-244be1fae4cc4c008a8e5fa37afd9609",
   "keywords": [
     "stream",
     "input",

data/2.Java中阶/1.IO/8.OutputStream类型/config.json

 {
-  "node_id": "java-14b1ab2a5cef423f95c98c714362a551",
+  "node_id": "java-8982e8e75eae4dc69016a9a674b95747",
   "keywords": [
     "output",
     "stream",

data/2.Java中阶/1.IO/config.json

 {
-  "node_id": "java-ec99adaddab8402caec79b61fab2f335",
+  "node_id": "java-333081b2e89b4f95a970930a62f147a4",
   "keywords": [],
   "title": "IO（输入输出）"
 }
\ No newline at end of file

data/2.Java中阶/2.使用JDBC操作数据库/1.JDBC概述/config.json

 {
-  "node_id": "java-8690eb14284c4fb88971b646079ca552",
+  "node_id": "java-f1ab1ec51d574fb690fdb811e16c56a1",
   "keywords": [
     "jdbc",
     "驱动",
@@ -11,7 +11,7 @@
       "JDBC-ODBC桥": {
         "keywords": [],
         "children": [],
-        "node_id": "java-a045157a68894eacb0e79c72bea465c8",
+        "node_id": "java-b983225cc5c2444cb6b171c440d6f21a",
         "title": "JDBC-ODBC桥"
       }
     },
@@ -19,7 +19,7 @@
       "JDBC技术": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+        "node_id": "java-44146e5d8c3d4ff2b09d1cba2303548b",
         "title": "JDBC技术"
       }
     },
@@ -27,7 +27,7 @@
       "JDBC驱动程序的类型": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+        "node_id": "java-911b1529015c4de7975e6fc0e72d962b",
         "title": "JDBC驱动程序的类型"
       }
     }

data/2.Java中阶/2.使用JDBC操作数据库/2.数据库操作/config.json

 {
-  "node_id": "java-ec8553468b944a29a513cc6c9ee6cc96",
+  "node_id": "java-61f373c260ed436f8129853ed2b8f7ba",
   "keywords": [
     "数据库",
     "操作",
@@ -15,7 +15,7 @@
       "数据库基础": {
         "keywords": [],
         "children": [],
-        "node_id": "java-bd09b1ca4af648e2a5435f96d4704e4b",
+        "node_id": "java-34a275b5d88c46f4bb8f88d90ab7e784",
         "title": "数据库基础"
       }
     },
@@ -23,7 +23,7 @@
       "数据查询": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+        "node_id": "java-83acc291fc1a4f9c983edb7020ad0f15",
         "title": "数据查询"
       }
     },
@@ -31,7 +31,7 @@
       "动态查询": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+        "node_id": "java-231de71bc86d4667b81add114e6038c4",
         "title": "动态查询"
       }
     },
@@ -39,7 +39,7 @@
       "添加、修改、删除记录": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+        "node_id": "java-58383f7f59c14f71a45fde1dd733359d"
       }
     },
     {
@@ -50,60 +50,60 @@
             "什么是数据库": {
               "keywords": [],
               "children": [],
-              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+              "node_id": "java-a338a17c5dac465b999a1d37557e6c43"
             }
           },
           {
             "数据库的种类及功能": {
               "keywords": [],
               "children": [],
-              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+              "node_id": "java-7b74f4b72db54d988d3a479e29ce3e01"
             }
           },
           {
             "SQL语言": {
               "keywords": [],
               "children": [],
-              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+              "node_id": "java-0bd1f6c4bcf140faaac4dcadc8198491"
             }
           }
         ],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+        "node_id": "java-5bc90fd8607d494a97ab3fba68f817f9"
       }
     },
     {
       "向数据库发送SQL语句": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+        "node_id": "java-3b0ad930ba984f7d82cbdc76c89e57f3"
       }
     },
     {
       "处理查询结果集": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+        "node_id": "java-188d35edba324155acce2b114485f327"
       }
     },
     {
       "顺序查询": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+        "node_id": "java-6908ec81e9664056948f0a32562655a9"
       }
     },
     {
       "模糊查询": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+        "node_id": "java-f9a632135d2649fca027f5cdbfc65d71"
       }
     },
     {
       "预处理语句": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+        "node_id": "java-e81c7b5b5bf54928ae8644dbc323f050"
       }
     }
   ],

data/2.Java中阶/2.使用JDBC操作数据库/config.json

 {
-  "node_id": "java-28205249ac1f4e6ca39f3369c8f8162f",
+  "node_id": "java-4500174e46274d018951ab586dee8b3c",
   "keywords": [],
   "children": [],
   "export": [],

data/2.Java中阶/3.NIO/1.NIO概述/config.json

 {
-  "node_id": "java-2e71082295674560a7319fb7f0e1e156",
+  "node_id": "java-0cec8f9ac5604de5b44e31c6311dac0f",
   "keywords": [
     "nio"
   ],

data/2.Java中阶/3.NIO/2.Buffer（缓冲器）/config.json

 {
-  "node_id": "java-341e605280f749e3880590e4b3f99c4d",
+  "node_id": "java-771d6e7e363e4bd090205dc3579f3f65",
   "keywords": [
     "buffer",
     "缓冲"

data/2.Java中阶/3.NIO/3.Channel（通道）/config.json

 {
-  "node_id": "java-dda56d3ffd4b42609337494972a29a4a",
+  "node_id": "java-0c832d961c2149668549165cf0f8db76",
   "keywords": [
     "channel",
     "通道"

data/2.Java中阶/3.NIO/4.字符集和Charset/config.json

 {
-  "node_id": "java-9018ada8548c409cb64ee0eb544f7707",
+  "node_id": "java-b83c6191f146401eb2f1314088cc47d9",
   "keywords": [
     "字符集",
     "charset"

data/2.Java中阶/3.NIO/5.文件锁/config.json

 {
-  "node_id": "java-cce7a38e62bd4d46b34de5970b3c5afd",
+  "node_id": "java-e4b0257bcd5944039c36c5913982db3d",
   "keywords": [
     "file",
     "文件",

data/2.Java中阶/3.NIO/6.Path接口/config.json

 {
-  "node_id": "java-8e202e65e57f41acafb4cbf46b2a46d1",
+  "node_id": "java-bd86e034227740aaa568de31b3e20a82",
   "keywords": [
     "Paths",
     "Path",

data/2.Java中阶/3.NIO/7.Files工具类/config.json

 {
-  "node_id": "java-e96ab4e046bc40b7b818d1a2ca7b8305",
+  "node_id": "java-baf449cd986441d3bdfdf6a7930b0780",
   "keywords": [
     "文件",
     "file"

data/2.Java中阶/3.NIO/config.json

 {
-  "node_id": "java-b61b6fb28d2c404aa958c040b9f46402",
+  "node_id": "java-bdd7b3ef86054acf9f1ab1f14470189f",
   "keywords": [],
   "children": [
     {
       "数据库基础": {
         "keywords": [],
         "children": [],
-        "node_id": "java-9980ee0f0b24470bb8c62eefbf4d27cf",
+        "node_id": "java-98f0f4524e0a495a85e738e302e374ab",
         "title": "数据库基础"
       }
     },
@@ -14,7 +14,7 @@
       "数据查询": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+        "node_id": "java-df0947cdd4524e369d814c28e873580c",
         "title": "数据查询"
       }
     },
@@ -22,7 +22,7 @@
       "动态查询": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+        "node_id": "java-d768a2db0b6440b3a7ee148ec4ef1c5e",
         "title": "动态查询"
       }
     },
@@ -30,7 +30,7 @@
       "添加、修改、删除记录": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+        "node_id": "java-88b5dae6537d4be18c08fff601ba69a0"
       }
     },
     {
@@ -41,60 +41,60 @@
             "什么是数据库": {
               "keywords": [],
               "children": [],
-              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+              "node_id": "java-8a03a910343f46338a44c188ce3748c6"
             }
           },
           {
             "数据库的种类及功能": {
               "keywords": [],
               "children": [],
-              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+              "node_id": "java-cb27fb7bb52b49ea84eac4b5e8d4b893"
             }
           },
           {
             "SQL语言": {
               "keywords": [],
               "children": [],
-              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+              "node_id": "java-e15237bfb5a344a6ad222f36a39388c9"
             }
           }
         ],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+        "node_id": "java-9c2b09fbeb3f480cb2eacc293bc72b4a"
       }
     },
     {
       "向数据库发送SQL语句": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+        "node_id": "java-5d533fedde8a4aeb8c7bafd7db5f7677"
       }
     },
     {
       "处理查询结果集": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+        "node_id": "java-4c9466c945f34a21a6654055afaa2671"
       }
     },
     {
       "顺序查询": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+        "node_id": "java-c35f473fc45643359dbc41bbcb4c3957"
       }
     },
     {
       "模糊查询": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+        "node_id": "java-dbae767e66c944aaa220820726331d86"
       }
     },
     {
       "预处理语句": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+        "node_id": "java-0cca21845e3b4f0c8d53c49313d95068"
       }
     }
   ],

data/2.Java中阶/4.网络编程/1.网络编程基础/config.json

 {
-  "node_id": "java-b434f50cb8384aa084a219fa7235d445",
+  "node_id": "java-895174e86af2401c9f1a23e2b7d5cf7c",
   "keywords": [
     "网络",
     "通信",
@@ -10,7 +10,7 @@
       "网络通信协议": {
         "keywords": [],
         "children": [],
-        "node_id": "java-8573a8cf4f914940b790785687f38b34",
+        "node_id": "java-5a182113f00f464b9a2915ef6b817ac5",
         "title": "网络通信协议"
       }
     },
@@ -18,7 +18,7 @@
       "IP地址和端口号": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+        "node_id": "java-f4d18568b01145af9b4137703221d2cc",
         "title": "IP地址和端口号"
       }
     },
@@ -26,7 +26,7 @@
       "InetAddress": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+        "node_id": "java-c11a56249ba743cfba833d538ba86653",
         "title": "InetAddress"
       }
     },
@@ -34,7 +34,7 @@
       "UDP与TCP协议": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+        "node_id": "java-e294bf6731c94825a7355b8062547cd5"
       }
     }
   ],

data/2.Java中阶/4.网络编程/2.UDP通信/config.json

 {
-  "node_id": "java-6118431c1da24b39b74997e92dee722a",
+  "node_id": "java-6f687a5e976f45e29a0995da65ca1ca4",
   "keywords": [
     "network",
     "udp",
@@ -10,7 +10,7 @@
       "UDP通信简介": {
         "keywords": [],
         "children": [],
-        "node_id": "java-9118d12d817b45e5a69ecdaca6283d01",
+        "node_id": "java-4ed7c86b3ae94a1580a28abd6753a089",
         "title": "UDP通信简介"
       }
     },
@@ -18,7 +18,7 @@
       "DatagramPacket": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+        "node_id": "java-dc23d1f8b4f64a50b0ef4557dc434960",
         "title": "DatagramPacket"
       }
     },
@@ -26,7 +26,7 @@
       "DatagramSocket": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+        "node_id": "java-c1f8c6ed49a8437f9ecbb84ba6325f16",
         "title": "DatagramSocket"
       }
     },
@@ -34,14 +34,14 @@
       "UDP网络程序": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+        "node_id": "java-439d65e71287479d8982d93bcd90d864"
       }
     },
     {
       "UDP案例——聊天程序": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+        "node_id": "java-cd1fca15ce3d4ab495d223dd06ec7ed8"
       }
     }
   ],

data/2.Java中阶/4.网络编程/3.TCP通信/config.json

 {
-  "node_id": "java-3a0c200ae63b4ca8b4e9b3c31727aa87",
+  "node_id": "java-52970a2821e14acf95335961b8bc4f23",
   "keywords": [
     "network",
     "tcp"
@@ -9,7 +9,7 @@
       "TCP通信简介": {
         "keywords": [],
         "children": [],
-        "node_id": "java-8664d9e4dcc04e77a24cfd6445635315",
+        "node_id": "java-5ee56d4dba664feb87461e1ecae2f14d",
         "title": "TCP通信简介"
       }
     },
@@ -17,7 +17,7 @@
       "ServerSocket": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+        "node_id": "java-8716987e22b64c509d4b388226425537",
         "title": "ServerSocket"
       }
     },
@@ -25,7 +25,7 @@
       "Socket": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+        "node_id": "java-cf60f51f623549a6988f964a9d3fa0f2",
         "title": "Socket"
       }
     },
@@ -33,21 +33,21 @@
       "简单的TCP网络程序": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+        "node_id": "java-29a73ff27493487b935bd61873df0df5"
       }
     },
     {
       "多线程的TCP网络程序": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+        "node_id": "java-593e89b7b3f14543b20ffc8b9bf1e5e3"
       }
     },
     {
       "TCP案例——文件上传": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+        "node_id": "java-61d21716eea841cbbf7adf455bf5b798"
       }
     }
   ],

data/2.Java中阶/4.网络编程/4.Java的基本网络支持/config.json

 {
-  "node_id": "java-0c3fe87877a041008ff9006642b7bee1",
+  "node_id": "java-26855c6c22eb4feb9736433af314d236",
   "keywords": [
     "network"
   ],
@@ -8,7 +8,7 @@
       "使用URLDecoder和URLEncoder": {
         "keywords": [],
         "children": [],
-        "node_id": "java-f880ae75add64feaae9a85ea7c9367b2",
+        "node_id": "java-8daee0933742497c82efd38f525aa2c3",
         "title": "使用URLDecoder和URLEncoder"
       }
     },
@@ -16,7 +16,7 @@
       "URL、URLConnection和URLPermission": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+        "node_id": "java-8325b9b88e6d494fa79489252e155a07",
         "title": "URL、URLConnection和URLPermission"
       }
     }

data/2.Java中阶/4.网络编程/5.使用代理服务器/config.json

 {
-  "node_id": "java-5e965d57a95e4bc4a12af1dc07fdadb7",
+  "node_id": "java-7d01139d98cf427b8dc3ff1f4aae8f0d",
   "keywords": [
     "network",
     "proxy"
@@ -9,7 +9,7 @@
       "直接使用Proxy创建连接": {
         "keywords": [],
         "children": [],
-        "node_id": "java-367580927af845268b72979f1e1e16be",
+        "node_id": "java-b9270e2181204c43bf182e10c7b52be2",
         "title": "直接使用Proxy创建连接"
       }
     },
@@ -17,7 +17,7 @@
       "使用ProxySelector自动选择代理服务器": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+        "node_id": "java-af1fd8b81844462192873da215e112fd",
         "title": "使用ProxySelector自动选择代理服务器"
       }
     }

data/2.Java中阶/4.网络编程/6.Java 11标准化的HTTP Client/config.json

 {
-  "node_id": "java-b4e46c44bab54ad7b5c846225e580d02",
+  "node_id": "java-678be9a9418e4aaa8b8a18b8840b821d",
   "keywords": [
     "websocket",
     "get",
@@ -13,7 +13,7 @@
       "发送同步GET请求": {
         "keywords": [],
         "children": [],
-        "node_id": "java-01931200f6684a0bba54c8fe79070301",
+        "node_id": "java-142ce1bc2d0a4ef88119a2254fdb3e26",
         "title": "发送同步GET请求"
       }
     },
@@ -21,7 +21,7 @@
       "发送带请求体的请求": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+        "node_id": "java-8a487dcee67b4d299a56778108b2affc",
         "title": "发送带请求体的请求"
       }
     },
@@ -29,7 +29,7 @@
       "发送异步请求": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+        "node_id": "java-a0b6e2452f5c4e28bf9fb6cedb0c0441",
         "title": "发送异步请求"
       }
     },
@@ -37,14 +37,14 @@
       "WebSocket客户端支持": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+        "node_id": "java-6b52889948d64d06b0089e8740eb697d"
       }
     },
     {
       "基于WebSocket的多人实时聊天": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+        "node_id": "java-99ba1716de1147e3a75937bf4f50f646"
       }
     }
   ],

data/2.Java中阶/4.网络编程/config.json

 {
-  "node_id": "java-337fdb2a49764b57a7809beac19d4f6d",
+  "node_id": "java-c641b7524a9b45fe8554cbc55f7e29f0",
   "keywords": [],
   "children": [],
   "export": [],

data/2.Java中阶/5.类型信息/1.Class对象/config.json

 {
-  "node_id": "java-71946752e8504bc2bad8b09e66c6628e",
+  "node_id": "java-c2866954f9e64b09bc904a06d9861213",
   "keywords": [
     "class",
     "类",
@@ -10,7 +10,7 @@
       "类字面常量": {
         "keywords": [],
         "children": [],
-        "node_id": "java-b94faa1fac2c4ffe8f8fcbdc8fc89ee9",
+        "node_id": "java-5a98dced094d40e6baf2b9e7c7022cac",
         "title": "类字面常量"
       }
     },
@@ -18,7 +18,7 @@
       "泛化的Class引用": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+        "node_id": "java-9ac3dc7899264da6854ae9594a921498",
         "title": "泛化的Class引用"
       }
     },
@@ -26,7 +26,7 @@
       "新的转型语法": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+        "node_id": "java-2d515b9c34ec4f2db1beb73cc105e1d2",
         "title": "新的转型语法"
       }
     }

data/2.Java中阶/5.类型信息/2.类型转换前先做检查/config.json

 {
-  "node_id": "java-cc302f033d194382add871d3e4507382",
+  "node_id": "java-213caf5e747b4a0e83ca1243d3f04c1e",
   "keywords": [
     "instanceof",
     "类型"
@@ -9,7 +9,7 @@
       "使用类字面常量": {
         "keywords": [],
         "children": [],
-        "node_id": "java-76e90c4c1397452b9569be2a05553053",
+        "node_id": "java-f9275188731f422396256492a3411f11",
         "title": "使用类字面常量"
       }
     },
@@ -17,7 +17,7 @@
       "动态instanceof": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+        "node_id": "java-f90601e2868b48c991ce34952d0cb079",
         "title": "动态instanceof"
       }
     },
@@ -25,7 +25,7 @@
       "递归计数": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+        "node_id": "java-728b88cb3c1a4b1fab1ad7927f4140e7",
         "title": "递归计数"
       }
     }

data/2.Java中阶/5.类型信息/3.instanceof与Class的等价性/config.json

 {
-  "node_id": "java-89b6f15cabd74f41b181b73184363f10",
+  "node_id": "java-839a73537adb4d5889ffef07b119c7bc",
   "keywords": [
     "类型"
   ],

data/2.Java中阶/5.类型信息/4.反射：运行时类信息/config.json

 {
-  "node_id": "java-9555035115d24b18bd5dbfc59dd33047",
+  "node_id": "java-2a4d9777557c4dc0a1e58e9278a4c758",
   "keywords": [
     "annotation",
     "标注"
@@ -9,7 +9,7 @@
       "类方法抽取器": {
         "keywords": [],
         "children": [],
-        "node_id": "java-aa383e03d51a4ea588ee1b04192ab556",
+        "node_id": "java-adc3a06cd45f408198a4b358480b0ead",
         "title": "类方法抽取器"
       }
     },
@@ -21,7 +21,7 @@
             "访问构造方法": {
               "keywords": [],
               "children": [],
-              "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+              "node_id": "java-953bd86e37ed4b11b7548d21447658a7",
               "title": "访问构造方法"
             }
           },
@@ -29,18 +29,18 @@
             "访问成员变量": {
               "keywords": [],
               "children": [],
-              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+              "node_id": "java-2be7f7718eca4c2f948af3ae2169241c"
             }
           },
           {
             "访问方法": {
               "keywords": [],
               "children": [],
-              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+              "node_id": "java-97b5491e602542a398acbe81e9e7abaf"
             }
           }
         ],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+        "node_id": "java-fbdf9fd1bc8a45ce904a8000cdbe59bd",
         "title": "Class类与Java反射"
       }
     },
@@ -52,81 +52,81 @@
             "定义Annotation类型": {
               "keywords": [],
               "children": [],
-              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+              "node_id": "java-f7c87b35452f4987be547345093bc0c1"
             }
           },
           {
             "访问Annotation信息": {
               "keywords": [],
               "children": [],
-              "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+              "node_id": "java-190702f4d4e0427c9fb1a0288a96ec88"
             }
           }
         ],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+        "node_id": "java-e15896b9680f4c2f89170b6a3df4bc39"
       }
     },
     {
       "声明异常入门": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+        "node_id": "java-6446e8a6a5854ab3abe97f834a7375af"
       }
     },
     {
       "资源": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+        "node_id": "java-99edafba831e436890ab3b03fcc5dc7e"
       }
     },
     {
       "利用反射分析类的能力": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+        "node_id": "java-caa8d116368c4022894575e4e05bf9cb"
       }
     },
     {
       "使用反射在运行时分析": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+        "node_id": "java-534916a23744490384c7614530ef0dd8"
       }
     },
     {
       "使用反射编写泛型数组": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+        "node_id": "java-af5136c8ee7c47a786e456bcd8691ff8"
       }
     },
     {
       "访问字段": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+        "node_id": "java-4bc4591f4f7c4e728774eb96d7ac7181"
       }
     },
     {
       "调用方法": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+        "node_id": "java-cc1e8c9e4c4e4b6ea32a8d439525c4ef"
       }
     },
     {
       "调用构造方法": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+        "node_id": "java-b6a986bfc2b446f49c30908cd1e8fb0e"
       }
     },
     {
       "获取继承关系": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+        "node_id": "java-3f6a219e0d9b4a128f188bc1175d64ab"
       }
     }
   ],

data/2.Java中阶/5.类型信息/5.动态代理/config.json

 {
-  "node_id": "java-4b2202f00dfc432da9e6653f4b43ab4a",
+  "node_id": "java-a35d9e84d0864315b92e1929b18bac1f",
   "keywords": [
     "proxy"
   ],

data/2.Java中阶/5.类型信息/6.空对象/config.json

 {
-  "node_id": "java-cb6c58f2b2d04db99aba9711532d48f4",
+  "node_id": "java-df75b8fe49674dadab913e4b2c350630",
   "keywords": [
     "空对象"
   ],
@@ -8,7 +8,7 @@
       "模拟对象与桩": {
         "keywords": [],
         "children": [],
-        "node_id": "java-0109d4ae23934645bc817fd2ac423854",
+        "node_id": "java-af111b3a5b0e4ce4b0e387647eebceb8",
         "title": "模拟对象与桩"
       }
     }

data/2.Java中阶/5.类型信息/config.json

 {
-  "node_id": "java-eee19573fbcf414e9aea31ace6667852",
+  "node_id": "java-d83a5eccb5f345d083ca02e38728c22d",
   "keywords": [],
   "children": [
     {
       "发送同步GET请求": {
         "keywords": [],
         "children": [],
-        "node_id": "java-b824479bc5744767b8b6628fba2cd112",
+        "node_id": "java-4739c718ad2e411dbacb13152fdf5b73",
         "title": "发送同步GET请求"
       }
     },
@@ -14,7 +14,7 @@
       "发送带请求体的请求": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+        "node_id": "java-c8d32de6c2f44b60892c109c628fe1b3",
         "title": "发送带请求体的请求"
       }
     },
@@ -22,7 +22,7 @@
       "发送异步请求": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+        "node_id": "java-3c22a36166124766a5a0add3cc5ec9e1",
         "title": "发送异步请求"
       }
     },
@@ -30,14 +30,14 @@
       "WebSocket客户端支持": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+        "node_id": "java-2ee6915b566642a4b48a1c9cce97cdb8"
       }
     },
     {
       "基于WebSocket的多人实时聊天": {
         "keywords": [],
         "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
+        "node_id": "java-8b5f2e5e2fe449c08ee6dbee368a9829"
       }
     }
   ],

data/2.Java中阶/6.深入研究容器/1.Collection的功能方法/config.json

 {
-  "node_id": "java-102debb54a3c4122ace850e5e24516c5",
+  "node_id": "java-ef4a5d5c517b46f7a2bbb385afd87aff",
   "keywords": [],
   "children": [],
   "export": [