reflections of structure

data/1.Java初阶/4.Java中的变量与常量/2.变量的数据类型/datatype.json

 {
-    "type": "code_options",
-    "author": "熊克斐",
-    "source": "datatype.md",
-    "notebook_enable": false
+  "type": "code_options",
+  "author": "熊克斐",
+  "source": "datatype.md",
+  "notebook_enable": false,
+  "exercise_id": "da780795e0d646bfa842df818ebb42c5"
 }
\ No newline at end of file

data/1.Java初阶/5.Java中的运算符/2.逻辑运算符/logic.json

 {
-    "type": "code_options",
-    "author": "熊克斐",
-    "source": "logic.md",
-    "notebook_enable": false
+  "type": "code_options",
+  "author": "熊克斐",
+  "source": "logic.md",
+  "notebook_enable": false,
+  "exercise_id": "0c164c155d6044a79cf46d4788b5d967"
 }
\ No newline at end of file

data/1.Java初阶/5.Java中的运算符/3.算术运算符/arithmetic.json

 {
-    "type": "code_options",
-    "author": "熊克斐",
-    "source": "arithmetic.md",
-    "notebook_enable": false
+  "type": "code_options",
+  "author": "熊克斐",
+  "source": "arithmetic.md",
+  "notebook_enable": false,
+  "exercise_id": "27c323f9672a45e9b620e8ca9b3e8160"
 }
\ No newline at end of file

data/1.Java初阶/6.选择结构语句/1.if条件语句/if.json

 {
-    "type": "code_options",
-    "author": "熊克斐",
-    "source": "if.md",
-    "notebook_enable": false
+  "type": "code_options",
+  "author": "熊克斐",
+  "source": "if.md",
+  "notebook_enable": false,
+  "exercise_id": "b44161e5a27342cdbe130ca04f805a93"
 }
\ No newline at end of file

data/1.Java初阶/7.循环结构语句/1.do…while循环语句/dowhile.json

 {
-    "type": "code_options",
-    "author": "熊克斐",
-    "source": "dowhile.md",
-    "notebook_enable": false
+  "type": "code_options",
+  "author": "熊克斐",
+  "source": "dowhile.md",
+  "notebook_enable": false,
+  "exercise_id": "e8ce3470f3194ddfa4faee42d3fbd622"
 }
\ No newline at end of file

data/2.Java中阶/11.注解/1.使用apt处理注解/config.json

-{
-  "node_id": "java-8b0806d4d89948598ac95e5c19b53298",
-  "keywords": [],
-  "children": [],
-  "export": ["apt.json"],
-  "title": "使用apt处理注解"
-}
\ No newline at end of file

data/2.Java中阶/11.注解/config.json

-{
-  "node_id": "java-ecc3132f20bf475390c8b1e793b966f5",
-  "keywords": []
-}
\ No newline at end of file

data/2.Java中阶/9.注解/3.使用apt处理注解/config.json

@@ -2,6 +2,6 @@
   "node_id": "java-8b0806d4d89948598ac95e5c19b53298",
   "keywords": [],
   "children": [],
-  "export": [],
+  "export": ["apt.json"],
   "title": "使用apt处理注解"
 }
\ No newline at end of file

data/2.Java中阶/9.注解/4.将观察者模式用于apt/config.json

-{
-  "node_id": "java-b351f154d1a94dc0ae830f51f5ac2320",
-  "keywords": [],
-  "children": [],
-  "export": [],
-  "title": "将观察者模式用于apt"
-}
\ No newline at end of file

data/tree.json

@@ -2884,13 +2884,6 @@
                       "children": []
                     }
                   },
-                  {
-                    "将观察者模式用于apt": {
-                      "node_id": "java-b351f154d1a94dc0ae830f51f5ac2320",
-                      "keywords": [],
-                      "children": []
-                    }
-                  },
                   {
                     "基于注解的单元测试": {
                       "node_id": "java-352f523c7ad54583a0097cf171015d83",
@@ -3149,21 +3142,6 @@
                 ]
               }
             },
-            {
-              "注解": {
-                "node_id": "java-ecc3132f20bf475390c8b1e793b966f5",
-                "keywords": [],
-                "children": [
-                  {
-                    "使用apt处理注解": {
-                      "node_id": "java-8b0806d4d89948598ac95e5c19b53298",
-                      "keywords": [],
-                      "children": []
-                    }
-                  }
-                ]
-              }
-            },
             {
               "Maven基础": {
                 "node_id": "java-13e82ac770bb42f3a6076274c28ead94",