diff --git "a/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/11.\344\274\230\345\205\210\351\230\237\345\210\227/config.json" "b/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/11.\344\274\230\345\205\210\351\230\237\345\210\227/config.json"
deleted file mode 100644
index f9090afa6cbcf0fbf4d9fff428f35f4372b4eea6..0000000000000000000000000000000000000000
--- "a/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/11.\344\274\230\345\205\210\351\230\237\345\210\227/config.json"
+++ /dev/null
@@ -1,7 +0,0 @@
-{
-  "node_id": "java-d2a2357798784f6fbcd875b94165e350",
-  "keywords": [],
-  "children": [],
-  "export": [],
-  "title": "优先队列"
-}
\ No newline at end of file
diff --git "a/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/12.\346\230\240\345\260\204/config.json" "b/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/11.\346\230\240\345\260\204/config.json"
similarity index 100%
rename from "data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/12.\346\230\240\345\260\204/config.json"
rename to "data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/11.\346\230\240\345\260\204/config.json"
diff --git "a/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/12.\346\230\240\345\260\204/map.json" "b/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/11.\346\230\240\345\260\204/map.json"
similarity index 100%
rename from "data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/12.\346\230\240\345\260\204/map.json"
rename to "data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/11.\346\230\240\345\260\204/map.json"
diff --git "a/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/12.\346\230\240\345\260\204/map.md" "b/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/11.\346\230\240\345\260\204/map.md"
similarity index 100%
rename from "data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/12.\346\230\240\345\260\204/map.md"
rename to "data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/11.\346\230\240\345\260\204/map.md"
diff --git "a/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/14.\351\201\227\347\225\231\347\232\204\351\233\206\345\220\210/config.json" "b/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/12.\351\201\227\347\225\231\347\232\204\351\233\206\345\220\210/config.json"
similarity index 100%
rename from "data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/14.\351\201\227\347\225\231\347\232\204\351\233\206\345\220\210/config.json"
rename to "data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/12.\351\201\227\347\225\231\347\232\204\351\233\206\345\220\210/config.json"
diff --git "a/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/14.\351\201\227\347\225\231\347\232\204\351\233\206\345\220\210/legacy.md" "b/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/12.\351\201\227\347\225\231\347\232\204\351\233\206\345\220\210/legacy.md"
similarity index 100%
rename from "data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/14.\351\201\227\347\225\231\347\232\204\351\233\206\345\220\210/legacy.md"
rename to "data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/12.\351\201\227\347\225\231\347\232\204\351\233\206\345\220\210/legacy.md"
diff --git "a/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/13.\347\256\227\346\263\225/config.json" "b/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/13.\347\256\227\346\263\225/config.json"
deleted file mode 100644
index 8b626410e4ebca145ad7d156c62bf565e2cd8b7e..0000000000000000000000000000000000000000
--- "a/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/13.\347\256\227\346\263\225/config.json"
+++ /dev/null
@@ -1,39 +0,0 @@
-{
-  "node_id": "java-61f2876689974eec9689c33ef8a3f4cb",
-  "keywords": [],
-  "children": [
-    {
-      "二分查找": {
-        "keywords": [],
-        "children": [],
-        "node_id": "java-ded68731826d4bce9d963538e39a10ef",
-        "title": "二分查找"
-      }
-    },
-    {
-      "简单算法": {
-        "keywords": [],
-        "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
-        "title": "简单算法"
-      }
-    },
-    {
-      "批操作": {
-        "keywords": [],
-        "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
-        "title": "批操作"
-      }
-    },
-    {
-      "编写自己的算法": {
-        "keywords": [],
-        "children": [],
-        "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
-      }
-    }
-  ],
-  "export": [],
-  "title": "算法"
-}
\ No newline at end of file
diff --git "a/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/17.\347\274\226\345\206\231equals\345\222\214hashCode/config.json" "b/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/13.\347\274\226\345\206\231equals\345\222\214hashCode/config.json"
similarity index 73%
rename from "data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/17.\347\274\226\345\206\231equals\345\222\214hashCode/config.json"
rename to "data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/13.\347\274\226\345\206\231equals\345\222\214hashCode/config.json"
index ac871cced02abf1e3e3709c9d3c3bf20eb28ef2b..0bc2683f6416e21c1c311eb5fb995a28bd14e028 100644
--- "a/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/17.\347\274\226\345\206\231equals\345\222\214hashCode/config.json"
+++ "b/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/13.\347\274\226\345\206\231equals\345\222\214hashCode/config.json"
@@ -2,6 +2,6 @@
   "node_id": "java-bb2a2b6d7b114799b01aa89bafbdab86",
   "keywords": [],
   "children": [],
-  "export": [],
+  "export": ["equals.json", "hashCode.json"],
   "title": "编写equals和hashCode"
 }
\ No newline at end of file
diff --git "a/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/13.\347\274\226\345\206\231equals\345\222\214hashCode/equals.json" "b/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/13.\347\274\226\345\206\231equals\345\222\214hashCode/equals.json"
new file mode 100644
index 0000000000000000000000000000000000000000..fab594e04e5db3ea30c8aa345ee330984a9e9a27
--- /dev/null
+++ "b/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/13.\347\274\226\345\206\231equals\345\222\214hashCode/equals.json"
@@ -0,0 +1,7 @@
+{
+  "type": "code_options",
+  "author": "熊克斐",
+  "source": "equals.md",
+  "exercise_id": "d5b55087a5ae4c0e968e73ce75b0fd1e",
+  "notebook_enable": false
+}
\ No newline at end of file
diff --git "a/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/16.\347\274\226\345\206\231equals\346\226\271\346\263\225/equals.md" "b/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/13.\347\274\226\345\206\231equals\345\222\214hashCode/equals.md"
similarity index 100%
rename from "data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/16.\347\274\226\345\206\231equals\346\226\271\346\263\225/equals.md"
rename to "data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/13.\347\274\226\345\206\231equals\345\222\214hashCode/equals.md"
diff --git "a/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/13.\347\274\226\345\206\231equals\345\222\214hashCode/hashCode.json" "b/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/13.\347\274\226\345\206\231equals\345\222\214hashCode/hashCode.json"
new file mode 100644
index 0000000000000000000000000000000000000000..bac029cba96bdd6a61e8ed4ac5198884266a64a0
--- /dev/null
+++ "b/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/13.\347\274\226\345\206\231equals\345\222\214hashCode/hashCode.json"
@@ -0,0 +1,7 @@
+{
+  "type": "code_options",
+  "author": "熊克斐",
+  "source": "hashCode.md",
+  "exercise_id": "9bfc14b6d96d4d559261ff6109804b52",
+  "notebook_enable": false
+}
\ No newline at end of file
diff --git "a/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/17.\347\274\226\345\206\231equals\345\222\214hashCode/hashCode.md" "b/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/13.\347\274\226\345\206\231equals\345\222\214hashCode/hashCode.md"
similarity index 100%
rename from "data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/17.\347\274\226\345\206\231equals\345\222\214hashCode/hashCode.md"
rename to "data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/13.\347\274\226\345\206\231equals\345\222\214hashCode/hashCode.md"
diff --git "a/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/18.\344\275\277\347\224\250TreeMap/config.json" "b/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/14.\344\275\277\347\224\250TreeMap/config.json"
similarity index 79%
rename from "data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/18.\344\275\277\347\224\250TreeMap/config.json"
rename to "data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/14.\344\275\277\347\224\250TreeMap/config.json"
index b8e3fb1a6799dd9422922bbea027b4e8a8b0a6d8..70b93ff6c170e80b99180653d3983226f5a14bc8 100644
--- "a/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/18.\344\275\277\347\224\250TreeMap/config.json"
+++ "b/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/14.\344\275\277\347\224\250TreeMap/config.json"
@@ -2,6 +2,6 @@
   "node_id": "java-6d9ccc979da54411ac65fccd1a12071e",
   "keywords": [],
   "children": [],
-  "export": [],
+  "export": ["treemap.json"],
   "title": "使用TreeMap"
 }
\ No newline at end of file
diff --git "a/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/14.\344\275\277\347\224\250TreeMap/treemap.json" "b/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/14.\344\275\277\347\224\250TreeMap/treemap.json"
new file mode 100644
index 0000000000000000000000000000000000000000..3bb1339ce3fa5604a06353e1d5e94e07e733b0e7
--- /dev/null
+++ "b/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/14.\344\275\277\347\224\250TreeMap/treemap.json"
@@ -0,0 +1,7 @@
+{
+  "type": "code_options",
+  "author": "熊克斐",
+  "source": "treemap.md",
+  "exercise_id": "35e1935651234ee4b741011a89bc4815",
+  "notebook_enable": false
+}
\ No newline at end of file
diff --git "a/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/18.\344\275\277\347\224\250TreeMap/treemap.md" "b/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/14.\344\275\277\347\224\250TreeMap/treemap.md"
similarity index 100%
rename from "data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/18.\344\275\277\347\224\250TreeMap/treemap.md"
rename to "data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/14.\344\275\277\347\224\250TreeMap/treemap.md"
diff --git "a/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/15.Java\351\233\206\345\220\210\347\256\200\344\273\213/config.json" "b/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/15.Java\351\233\206\345\220\210\347\256\200\344\273\213/config.json"
deleted file mode 100644
index a4fbad5709950b49149ee47adf18fff8878233a2..0000000000000000000000000000000000000000
--- "a/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/15.Java\351\233\206\345\220\210\347\256\200\344\273\213/config.json"
+++ /dev/null
@@ -1,7 +0,0 @@
-{
-  "node_id": "java-91db3dd24ea34bca8c6e9d0935d33d9c",
-  "keywords": [],
-  "children": [],
-  "export": [],
-  "title": "Java集合简介"
-}
\ No newline at end of file
diff --git "a/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/19.\344\275\277\347\224\250Properties/config.json" "b/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/15.\344\275\277\347\224\250Properties/config.json"
similarity index 100%
rename from "data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/19.\344\275\277\347\224\250Properties/config.json"
rename to "data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/15.\344\275\277\347\224\250Properties/config.json"
diff --git "a/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/15.\344\275\277\347\224\250Properties/properties.json" "b/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/15.\344\275\277\347\224\250Properties/properties.json"
new file mode 100644
index 0000000000000000000000000000000000000000..8dffb4767c4447129af060641913c27871fefed9
--- /dev/null
+++ "b/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/15.\344\275\277\347\224\250Properties/properties.json"
@@ -0,0 +1,7 @@
+{
+    "type": "code_options",
+    "author": "熊克斐",
+    "source": "properties.md",
+    "exercise_id": "",
+    "notebook_enable": false
+}
\ No newline at end of file
diff --git "a/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/19.\344\275\277\347\224\250Properties/properties.md" "b/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/15.\344\275\277\347\224\250Properties/properties.md"
similarity index 100%
rename from "data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/19.\344\275\277\347\224\250Properties/properties.md"
rename to "data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/15.\344\275\277\347\224\250Properties/properties.md"
diff --git "a/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/20.\344\275\277\347\224\250Deque/config.json" "b/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/16.\344\275\277\347\224\250Deque/config.json"
similarity index 80%
rename from "data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/20.\344\275\277\347\224\250Deque/config.json"
rename to "data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/16.\344\275\277\347\224\250Deque/config.json"
index d51a5a975224ac5f7d3fed68eb2850a251070844..d17eaa1018c45cbcbbde1373334d345fb4bd0fb8 100644
--- "a/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/20.\344\275\277\347\224\250Deque/config.json"
+++ "b/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/16.\344\275\277\347\224\250Deque/config.json"
@@ -2,6 +2,6 @@
   "node_id": "java-ff4a16d20df24eda93d843749e777a76",
   "keywords": [],
   "children": [],
-  "export": [],
+  "export": ["deque.json"],
   "title": "使用Deque"
 }
\ No newline at end of file
diff --git "a/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/16.\344\275\277\347\224\250Deque/deque.json" "b/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/16.\344\275\277\347\224\250Deque/deque.json"
new file mode 100644
index 0000000000000000000000000000000000000000..9324e1c9dd52d5b4fbe46d45d1b2826676bbf569
--- /dev/null
+++ "b/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/16.\344\275\277\347\224\250Deque/deque.json"
@@ -0,0 +1,7 @@
+{
+  "type": "code_options",
+  "author": "熊克斐",
+  "source": "deque.md",
+  "exercise_id": "b1d4c7e3ce4447de87d8d43f04e6cece",
+  "notebook_enable": false
+}
\ No newline at end of file
diff --git "a/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/20.\344\275\277\347\224\250Deque/deque.md" "b/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/16.\344\275\277\347\224\250Deque/deque.md"
similarity index 100%
rename from "data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/20.\344\275\277\347\224\250Deque/deque.md"
rename to "data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/16.\344\275\277\347\224\250Deque/deque.md"
diff --git "a/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/16.\347\274\226\345\206\231equals\346\226\271\346\263\225/config.json" "b/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/16.\347\274\226\345\206\231equals\346\226\271\346\263\225/config.json"
deleted file mode 100644
index 578637879e70a561184baa6f332f6f3e8d31ac5b..0000000000000000000000000000000000000000
--- "a/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/16.\347\274\226\345\206\231equals\346\226\271\346\263\225/config.json"
+++ /dev/null
@@ -1,7 +0,0 @@
-{
-  "node_id": "java-8bfe31396801426e8ed6f8b8a8190b80",
-  "keywords": [],
-  "children": [],
-  "export": [],
-  "title": "编写equals方法"
-}
\ No newline at end of file
diff --git "a/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/7.\351\223\276\350\241\250/config.json" "b/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/7.\351\223\276\350\241\250/config.json"
index 0ef00246ef59be30e220e6f789c240190507423b..538c75924341714f2a78b542ff2bd04c164c8ff2 100644
--- "a/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/7.\351\223\276\350\241\250/config.json"
+++ "b/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/7.\351\223\276\350\241\250/config.json"
@@ -2,6 +2,6 @@
   "node_id": "java-bfbb4319eb60496583ace9aca561c7ab",
   "keywords": [],
   "children": [],
-  "export": [],
+  "export": ["linkedlist.json"],
   "title": "链表"
 }
\ No newline at end of file
diff --git "a/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/7.\351\223\276\350\241\250/linkedlist.json" "b/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/7.\351\223\276\350\241\250/linkedlist.json"
new file mode 100644
index 0000000000000000000000000000000000000000..d08013d5109a82ae47c69b1bad87a7c8826f5c37
--- /dev/null
+++ "b/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/7.\351\223\276\350\241\250/linkedlist.json"
@@ -0,0 +1,7 @@
+{
+  "type": "code_options",
+  "author": "熊克斐",
+  "source": "linkedlist.md",
+  "exercise_id": "0d209b81cdb149478e1e33ef8bdfb643",
+  "notebook_enable": false
+}
\ No newline at end of file
diff --git "a/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/8.\346\225\260\347\273\204\345\210\227\350\241\250/arraylist.json" "b/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/8.\346\225\260\347\273\204\345\210\227\350\241\250/arraylist.json"
new file mode 100644
index 0000000000000000000000000000000000000000..0efe72f7d03db3d7179bafaf04561c424465f599
--- /dev/null
+++ "b/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/8.\346\225\260\347\273\204\345\210\227\350\241\250/arraylist.json"
@@ -0,0 +1,7 @@
+{
+  "type": "code_options",
+  "author": "熊克斐",
+  "source": "arraylist.md",
+  "exercise_id": "6005f72acd6c44bb973d593345cc9187",
+  "notebook_enable": false
+}
\ No newline at end of file
diff --git "a/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/8.\346\225\260\347\273\204\345\210\227\350\241\250/config.json" "b/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/8.\346\225\260\347\273\204\345\210\227\350\241\250/config.json"
index 61c69dff9f443e86dec214941b5648da42441548..1fa6910443ebd2e2e31764c617180f8682e2e680 100644
--- "a/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/8.\346\225\260\347\273\204\345\210\227\350\241\250/config.json"
+++ "b/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/8.\346\225\260\347\273\204\345\210\227\350\241\250/config.json"
@@ -2,6 +2,6 @@
   "node_id": "java-a8e9302bf3f34c67b6d0d1d1dd5b8e06",
   "keywords": [],
   "children": [],
-  "export": [],
+  "export": ["arraylist.json"],
   "title": "数组列表"
 }
\ No newline at end of file
diff --git "a/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/9.\346\225\243\345\210\227\351\233\206/hashset.json" "b/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/9.\346\225\243\345\210\227\351\233\206/hashset.json"
new file mode 100644
index 0000000000000000000000000000000000000000..2aafb87354859e1c650b2a1e8895138be0cfc660
--- /dev/null
+++ "b/data/1.Java\345\210\235\351\230\266/7.\351\233\206\345\220\210/9.\346\225\243\345\210\227\351\233\206/hashset.json"
@@ -0,0 +1,7 @@
+{
+    "type": "code_options",
+    "author": "熊克斐",
+    "source": "hashset.md",
+    "exercise_id": "",
+    "notebook_enable": false
+}
\ No newline at end of file
diff --git a/data/tree.json b/data/tree.json
index 184149677a312996286df59595776671d481a2cc..107fc7169b984ae4fdcb8c9bf7f5fe3ba78af4a8 100644
--- a/data/tree.json
+++ b/data/tree.json
@@ -429,13 +429,6 @@
                       "children": []
                     }
                   },
-                  {
-                    "优先队列": {
-                      "node_id": "java-d2a2357798784f6fbcd875b94165e350",
-                      "keywords": [],
-                      "children": []
-                    }
-                  },
                   {
                     "映射": {
                       "node_id": "java-7625240ab0254b198142c52926465f42",
@@ -496,45 +489,6 @@
                       ]
                     }
                   },
-                  {
-                    "算法": {
-                      "node_id": "java-61f2876689974eec9689c33ef8a3f4cb",
-                      "keywords": [],
-                      "children": [
-                        {
-                          "二分查找": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "java-ded68731826d4bce9d963538e39a10ef",
-                            "title": "二分查找"
-                          }
-                        },
-                        {
-                          "简单算法": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
-                            "title": "简单算法"
-                          }
-                        },
-                        {
-                          "批操作": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
-                            "title": "批操作"
-                          }
-                        },
-                        {
-                          "编写自己的算法": {
-                            "keywords": [],
-                            "children": [],
-                            "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
-                          }
-                        }
-                      ]
-                    }
-                  },
                   {
                     "遗留的集合": {
                       "node_id": "java-7f1d9ed947de49588bb7c8a02e052c10",
@@ -567,20 +521,6 @@
                       ]
                     }
                   },
-                  {
-                    "Java集合简介": {
-                      "node_id": "java-91db3dd24ea34bca8c6e9d0935d33d9c",
-                      "keywords": [],
-                      "children": []
-                    }
-                  },
-                  {
-                    "编写equals方法": {
-                      "node_id": "java-8bfe31396801426e8ed6f8b8a8190b80",
-                      "keywords": [],
-                      "children": []
-                    }
-                  },
                   {
                     "编写equals和hashCode": {
                       "node_id": "java-bb2a2b6d7b114799b01aa89bafbdab86",