prepare exerceses structure

data/1.C语言初阶/3.运算符与表达式/config.json

@@ -46,6 +46,8 @@
       }
     }
   ],
-  "export": [],
+  "export": [
+    "basic_data_types.json"
+  ],
   "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
 }
\ No newline at end of file

data/1.C语言初阶/4.语句与控制流/config.json

@@ -5,5 +5,7 @@
     "C语言"
   ],
   "children": [],
-  "export": []
+  "export": [
+    "precedence.json"
+  ]
 }
\ No newline at end of file

data/2.C语言中阶/1.函数与程序结构/1.函数的声明与定义/config.json

@@ -6,5 +6,7 @@
     "C语言"
   ],
   "children": [],
-  "export": ["definition.json"]
+  "export": [
+    "definition.json"
+  ]
 }
\ No newline at end of file

data/2.C语言中阶/1.函数与程序结构/3.函数的返回/config.json

@@ -6,5 +6,7 @@
     "C语言"
   ],
   "children": [],
-  "export": ["return.json"]
+  "export": [
+    "return.json"
+  ]
 }
\ No newline at end of file

data/2.C语言中阶/1.函数与程序结构/4.函数的调用/config.json

@@ -6,5 +6,7 @@
     "C语言"
   ],
   "children": [],
-  "export": ["function_call.json"]
+  "export": [
+    "function_call.json"
+  ]
 }
\ No newline at end of file

data/2.C语言中阶/1.函数与程序结构/6.局部变量和全局变量/config.json

 {
-    "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
-    "keywords": [
-      "C语言概述",
-      "概述",
-      "C语言"
-    ],
-    "children": [],
-    "export": ["global_n_local_var.json"]
-  }
\ No newline at end of file
+  "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+  "keywords": [
+    "C语言概述",
+    "概述",
+    "C语言"
+  ],
+  "children": [],
+  "export": [
+    "global_n_local_var.json"
+  ]
+}
\ No newline at end of file

data/2.C语言中阶/3.指针/5.指针数组以及指向指针的指针/config.json

@@ -5,5 +5,7 @@
     "C语言"
   ],
   "children": [],
-  "export": ["pointers_array.json"]
+  "export": [
+    "pointers_array.json"
+  ]
 }
\ No newline at end of file

data/2.C语言中阶/3.指针/config.json

@@ -5,5 +5,7 @@
     "C语言"
   ],
   "children": [],
-  "export": []
+  "export": [
+    "vla.json"
+  ]
 }
\ No newline at end of file

data/2.C语言中阶/4.字符串/1.字符串输入与输出/config.json

 {
-    "keywords": [
-      "C语言概述",
-      "概述",
-      "C语言"
-    ],
-    "children": [],
-    "export": ["string_io.json"]
+  "keywords": [
+    "C语言概述",
+    "概述",
+    "C语言"
+  ],
+  "children": [],
+  "export": [
+    "string_io.json"
+  ],
+  "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
 }
\ No newline at end of file

data/2.C语言中阶/4.字符串/2.字符串函数/config.json

 {
-    "keywords": [
-        "C语言概述",
-        "概述",
-        "C语言"
-    ],
-    "children": [],
-    "export": [
-        "string_func.json"
-    ]
+  "keywords": [
+    "C语言概述",
+    "概述",
+    "C语言"
+  ],
+  "children": [],
+  "export": [
+    "string_func.json"
+  ],
+  "node_id": "569d5e11c4fc5de7844053d9a733c5e8"
 }
\ No newline at end of file

data/2.C语言中阶/4.字符串/config.json

@@ -5,5 +5,7 @@
     "C语言"
   ],
   "children": [],
-  "export": []
+  "export": [
+    "pointers_2_func.json"
+  ]
 }
\ No newline at end of file

data/3.C语言高阶/1.结构体/1.结构体简介/config.json

 {
-    "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
-    "keywords": [
-        "结构体",
-        "C语言"
-    ],
-    "children": [],
-    "export": [
-        "structures.json"
-    ]
+  "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+  "keywords": [
+    "结构体",
+    "C语言"
+  ],
+  "children": [],
+  "export": [
+    "structures.json"
+  ]
 }
\ No newline at end of file

data/3.C语言高阶/1.结构体/3.结构体指针/config.json

 {
-    "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
-    "keywords": [
-        "结构体",
-        "C语言"
-    ],
-    "children": [],
-    "export": [
-        "structures_pointers.json"
-    ]
+  "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+  "keywords": [
+    "结构体",
+    "C语言"
+  ],
+  "children": [],
+  "export": [
+    "structures_pointers.json"
+  ]
 }
\ No newline at end of file

data/3.C语言高阶/1.结构体/4.结构体与函数/config.json

@@ -5,5 +5,7 @@
     "C语言"
   ],
   "children": [],
-  "export": ["structures_n_func.json"]
+  "export": [
+    "structures_n_func.json"
+  ]
 }
\ No newline at end of file

data/3.C语言高阶/1.结构体/5.链式结构/config.json

 {
-    "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
-    "keywords": [
-        "结构体",
-        "C语言"
-    ],
-    "children": [],
-    "export": [
-        "linked_list.json"
-    ]
+  "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+  "keywords": [
+    "结构体",
+    "C语言"
+  ],
+  "children": [],
+  "export": [
+    "linked_list.json"
+  ]
 }
\ No newline at end of file

data/3.C语言高阶/2.联合体与枚举类型/1.联合体/config.json

 {
-    "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
-    "keywords": [
-        "联合体",
-        "共用体"
-    ],
-    "children": [],
-    "export": [
-      "unions.json"
-    ]
-  }
\ No newline at end of file
+  "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+  "keywords": [
+    "联合体",
+    "共用体"
+  ],
+  "children": [],
+  "export": [
+    "unions.json"
+  ]
+}
\ No newline at end of file

data/3.C语言高阶/2.联合体与枚举类型/2.枚举类型/config.json

 {
-    "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
-    "keywords": [
-        "枚举",
-        "枚举类型"
-    ],
-    "children": [],
-    "export": [
-        "enum.json"
-    ]
+  "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+  "keywords": [
+    "枚举",
+    "枚举类型"
+  ],
+  "children": [],
+  "export": [
+    "enum.json"
+  ]
 }
\ No newline at end of file

data/3.C语言高阶/2.联合体与枚举类型/config.json

 {
-    "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
-    "keywords": [
-        "联合体",
-        "共用体",
-        "枚举类型",
-        "枚举"
-    ]
+  "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+  "keywords": [
+    "结构体",
+    "C语言"
+  ],
+  "children": [],
+  "export": [
+    "linked_list.json"
+  ]
 }
\ No newline at end of file

data/3.C语言高阶/3.位运算/1.位和字节/config.json

@@ -6,5 +6,7 @@
     "C语言"
   ],
   "children": [],
-  "export": ["check.json"]
+  "export": [
+    "check.json"
+  ]
 }
\ No newline at end of file

data/3.C语言高阶/3.位运算/2.二进制数/config.json

@@ -6,5 +6,7 @@
     "C语言"
   ],
   "children": [],
-  "export": ["count.json"]
+  "export": [
+    "count.json"
+  ]
 }
\ No newline at end of file

data/3.C语言高阶/3.位运算/3.八进制/config.json

@@ -6,5 +6,7 @@
     "C语言"
   ],
   "children": [],
-  "export": ["oct.json"]
+  "export": [
+    "oct.json"
+  ]
 }
\ No newline at end of file

data/3.C语言高阶/3.位运算/config.json

 {
   "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
   "keywords": [
-    "结构体",
-    "C语言"
+    "枚举",
+    "枚举类型"
   ],
   "children": [],
-  "export": []
+  "export": [
+    "enum.json"
+  ]
 }
\ No newline at end of file

data/3.C语言高阶/4.预处理器/1.宏定义/config.json

@@ -7,9 +7,9 @@
   ],
   "children": [],
   "export": [
-      "define_constant.json",
-      "define_func_1.json",
-      "define_func_2.json",
-      "define_func_3.json"
+    "define_constant.json",
+    "define_func_1.json",
+    "define_func_2.json",
+    "define_func_3.json"
   ]
 }
\ No newline at end of file

data/3.C语言高阶/4.预处理器/1.宏定义/define_constant.json

 {
-    "type": "code_options",
-    "author": "幻灰龙",
-    "source": "define_constant.md"
+  "type": "code_options",
+  "author": "幻灰龙",
+  "source": "define_constant.md",
+  "exercise_id": "569d5e11c4fc5de7844053d9a733c5e8"
 }
\ No newline at end of file

data/3.C语言高阶/4.预处理器/1.宏定义/define_func_1.json

 {
-    "type": "code_options",
-    "author": "幻灰龙",
-    "source": "define_func_1.md"
+  "type": "code_options",
+  "author": "幻灰龙",
+  "source": "define_func_1.md",
+  "exercise_id": "569d5e11c4fc5de7844053d9a733c5e8"
 }
\ No newline at end of file

data/3.C语言高阶/4.预处理器/1.宏定义/define_func_2.json

 {
-    "type": "code_options",
-    "author": "幻灰龙",
-    "source": "define_func_2.md"
+  "type": "code_options",
+  "author": "幻灰龙",
+  "source": "define_func_2.md",
+  "exercise_id": "569d5e11c4fc5de7844053d9a733c5e8"
 }
\ No newline at end of file

data/3.C语言高阶/4.预处理器/1.宏定义/define_func_3.json

 {
-    "type": "code_options",
-    "author": "幻灰龙",
-    "source": "define_func_3.md"
-}
+  "type": "code_options",
+  "author": "幻灰龙",
+  "source": "define_func_3.md",
+  "exercise_id": "569d5e11c4fc5de7844053d9a733c5e8"
+}
\ No newline at end of file

data/3.C语言高阶/4.预处理器/2.#include指令/calc.json

 {
-    "type": "code_options",
-    "author": "幻灰龙",
-    "source": "calc.h",
-    "multiline":[
-        {
-            "#ifndef CALC_H": "",
-            "#define CALC_H": "",
-            "#endif": ""
-        },
-        {
-            "#define CALC_H": ""
-        },
-        {
-            "#ifndef CALC_H": ""
-        }
-    ]
+  "type": "code_options",
+  "author": "幻灰龙",
+  "source": "calc.h",
+  "multiline": [
+    {
+      "#ifndef CALC_H": "",
+      "#define CALC_H": "",
+      "#endif": ""
+    },
+    {
+      "#define CALC_H": ""
+    },
+    {
+      "#ifndef CALC_H": ""
+    }
+  ],
+  "exercise_id": "569d5e11c4fc5de7844053d9a733c5e8"
 }
\ No newline at end of file

data/3.C语言高阶/4.预处理器/2.#include指令/calc_test.json

 {
-    "type": "code_options",
-    "author": "幻灰龙",
-    "source": "calc_test.c",
-    "multiline":[
-        {
-            "#include \"calc.h\"":"#include <calc.h>"
-        },
-        {
-            "#include \"calc.h\"":"using \"calc.h\""
-        },
-        {
-            "#include \"calc.h\"":"#include(\"calc.h\")"
-        }
-    ]
+  "type": "code_options",
+  "author": "幻灰龙",
+  "source": "calc_test.c",
+  "multiline": [
+    {
+      "#include \"calc.h\"": "#include <calc.h>"
+    },
+    {
+      "#include \"calc.h\"": "using \"calc.h\""
+    },
+    {
+      "#include \"calc.h\"": "#include(\"calc.h\")"
+    }
+  ],
+  "exercise_id": "569d5e11c4fc5de7844053d9a733c5e8"
 }
\ No newline at end of file

data/3.C语言高阶/4.预处理器/2.#include指令/config.json

@@ -7,7 +7,7 @@
   ],
   "children": [],
   "export": [
-      "calc.json",
-      "calc_test.json"
+    "calc.json",
+    "calc_test.json"
   ]
 }
\ No newline at end of file

data/tree.json

@@ -890,7 +890,18 @@
                     }
                   },
                   {
-                    "内部函数和外部函数": {
+                    "局部变量和全局变量": {
+                      "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+                      "keywords": [
+                        "C语言概述",
+                        "概述",
+                        "C语言"
+                      ],
+                      "children": []
+                    }
+                  },
+                  {
+                    "头文件": {
                       "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
                       "keywords": [
                         "函数",
@@ -901,7 +912,7 @@
                     }
                   },
                   {
-                    "头文件": {
+                    "内部函数和外部函数": {
                       "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
                       "keywords": [
                         "函数",
@@ -1014,16 +1025,6 @@
                       "children": []
                     }
                   },
-                  {
-                    "字符指针与函数": {
-                      "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
-                      "keywords": [
-                        "指针",
-                        "C语言"
-                      ],
-                      "children": []
-                    }
-                  },
                   {
                     "指针数组以及指向指针的指针": {
                       "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
@@ -1054,7 +1055,30 @@
                   "指针",
                   "C语言"
                 ],
-                "children": []
+                "children": [
+                  {
+                    "字符串输入与输出": {
+                      "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+                      "keywords": [
+                        "C语言概述",
+                        "概述",
+                        "C语言"
+                      ],
+                      "children": []
+                    }
+                  },
+                  {
+                    "字符串函数": {
+                      "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+                      "keywords": [
+                        "C语言概述",
+                        "概述",
+                        "C语言"
+                      ],
+                      "children": []
+                    }
+                  }
+                ]
               }
             }
           ]
@@ -1124,21 +1148,42 @@
               }
             },
             {
-              "联合体": {
+              "联合体与枚举类型": {
                 "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
                 "keywords": [
                   "结构体",
                   "C语言"
                 ],
-                "children": []
+                "children": [
+                  {
+                    "联合体": {
+                      "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+                      "keywords": [
+                        "联合体",
+                        "共用体"
+                      ],
+                      "children": []
+                    }
+                  },
+                  {
+                    "枚举类型": {
+                      "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+                      "keywords": [
+                        "枚举",
+                        "枚举类型"
+                      ],
+                      "children": []
+                    }
+                  }
+                ]
               }
             },
             {
               "位运算": {
                 "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
                 "keywords": [
-                  "结构体",
-                  "C语言"
+                  "枚举",
+                  "枚举类型"
                 ],
                 "children": [
                   {