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

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

@@ -5,5 +5,8 @@
     "C语言"
   ],
   "children": [],
-    "export": ["string_io.json"]
+  "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

@@ -7,5 +7,6 @@
   "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/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/2.联合体与枚举类型/1.联合体/config.json

@@ -8,4 +8,4 @@
   "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/config.json

 {
   "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
   "keywords": [
-        "联合体",
-        "共用体",
-        "枚举类型",
-        "枚举"
+    "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/define_constant.json

 {
   "type": "code_options",
   "author": "幻灰龙",
-    "source": "define_constant.md"
+  "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"
+  "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"
+  "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"
+  "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

@@ -2,7 +2,7 @@
   "type": "code_options",
   "author": "幻灰龙",
   "source": "calc.h",
-    "multiline":[
+  "multiline": [
     {
       "#ifndef CALC_H": "",
       "#define CALC_H": "",
@@ -14,5 +14,6 @@
     {
       "#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

@@ -2,15 +2,16 @@
   "type": "code_options",
   "author": "幻灰龙",
   "source": "calc_test.c",
-    "multiline":[
+  "multiline": [
     {
-            "#include \"calc.h\"":"#include <calc.h>"
+      "#include \"calc.h\"": "#include <calc.h>"
     },
     {
-            "#include \"calc.h\"":"using \"calc.h\""
+      "#include \"calc.h\"": "using \"calc.h\""
     },
     {
-            "#include \"calc.h\"":"#include(\"calc.h\")"
+      "#include \"calc.h\"": "#include(\"calc.h\")"
     }
-    ]
+  ],
+  "exercise_id": "569d5e11c4fc5de7844053d9a733c5e8"
 }
\ 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",
@@ -1015,7 +1026,7 @@
                     }
                   },
                   {
-                    "字符指针与函数": {
+                    "指针数组以及指向指针的指针": {
                       "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
                       "keywords": [
                         "指针",
@@ -1025,7 +1036,7 @@
                     }
                   },
                   {
-                    "指针数组以及指向指针的指针": {
+                    "指向函数的指针": {
                       "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
                       "keywords": [
                         "指针",
@@ -1033,25 +1044,35 @@
                       ],
                       "children": []
                     }
+                  }
+                ]
+              }
             },
             {
-                    "指向函数的指针": {
+              "字符串": {
                 "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
                 "keywords": [
                   "指针",
                   "C语言"
                 ],
+                "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": {
+                    "字符串函数": {
                       "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
                       "keywords": [
-                  "指针",
+                        "C语言概述",
+                        "概述",
                         "C语言"
                       ],
                       "children": []
@@ -1059,6 +1080,9 @@
                   }
                 ]
               }
+            }
+          ]
+        }
       },
       {
         "C语言高阶": {
@@ -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": [
+                  {
+                    "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": [
                   {