init skill_tree_c dir, add readme

.gitignore

+.vscode
+.idea
+.DS_Store
+__pycache__
+*.pyc
+*.zip
\ No newline at end of file

README.md

 # skill_tree_c
 
+## 初始化
+
+```
+pip install -r requirement.txt
+```
+
+
+## 目录结构说明
+
+* 技能树`骨架文件`：
+    * 位置：`data/tree.json` 
+    * 说明：该文件是执行 `python main.py` 生成的，请勿人工编辑
+* 技能树`根节点`配置文件：
+    * 位置：`data/config.json`
+    * 说明：可编辑配置关键词等字段，其中 `node_id` 字段是生成的，请勿编辑
+* 技能树`难度节点`：
+    * 位置：`data/xxx`，例如: `data/1.C语言初阶`
+    * 说明：
+        * 每个技能树有 3 个等级，目录前的序号是必要的，用来保持文件夹目录的顺序
+        * 每个目录下有一个 `config.json` 可配置关键词信息，其中 `node_id` 字段是生成的，请勿编辑
+* 技能树`章节点`：
+    * 位置：`data/xxx/xxx`，例如：`data/1.C语言初阶/1.C语言概述`
+    * 说明：
+        * 每个技能树的每个难度等级有 n 个章节，目录前的序号是必要的，用来保持文件夹目录的顺序
+        * 每个目录下有一个 `config.json` 可配置关键词信息，其中 `node_id` 字段是生成的，请勿编辑
+* 技能树`知识节点`：
+    * 位置：`data/xxx/xxx`，例如：`data/1.C语言初阶/1.C语言概述`
+    * 说明：
+        * 每个技能树的每章有 n 个知识节点，目录前的序号是必要的，用来保持文件夹目录的顺序
+        * 每个目录下有一个 `config.json`
+            * 其中 `node_id` 字段是生成的，请勿编辑
+            * 其中 `keywords` 可配置关键字字段
+            * 其中 `children` 可配置该`知识节点`下的子树结构信息，参考后面描述
+            * 其中 `export` 可配置该`知识节点`下的导出习题信息，参考后面描述
+
+
+## `知识节点` 子树信息结构
+
+例如 `data/1.C语言初阶/1.C语言概述/1.C语言发展史/config.json` 里配置对该知识节点子树信息结构：
+```json
+{
+    // ...
+
+    "children": [
+        {
+        "C语言的起源": {
+            "keywords": [
+            "C语言的起源",
+            "起源",
+            "C语言"
+            ],
+            "children": []
+        }
+        },
+        {
+        "C语言的发展与应用": {
+            "keywords": [
+            "C语言的发展",
+            "C语言的应用",
+            "发展",
+            "应用",
+            "C语言"
+            ],
+            "children": []
+        }
+        }
+    ],
+}
+```
+
+
+
+## `知识节点` 的导出习题编辑
+
+例如 `data/1.C语言初阶/1.C语言概述/1.C语言发展史/config.json` 里配置对该知识节点导出的习题
+
+```json
+{
+    // ...
+    "export": [
+        {
+            "file": "helloworld.c",
+            "variants": "helloworld.json",
+            "depends": []
+        },
+        // ...
+    ]
+}
+```
+
+格式说明：
+* `file`: 指定该目录下的习题源文件
+* `variants`： 指定习题同名的json选项配置文件，参考下一节
+* `depends`: 如果习题依赖同目录下的其他习题源代码，则在此字段里配置依赖的其他习题源文件名
+
+## `知识节点` 的导出习题选项配置编辑
+
+首先，在知识节点下增加一个习题代码，例如在 `data/1.C语言初阶/1.C语言概述/1.C语言发展史/` 下增加一个`helloworld.c`代码：
+
+```c
+#include <stdio.h>
+int main(int argc, char** argv){
+    printf("Hello,Wrold!");
+    return 0;
+}
+```
+
+其次，增加一个同名的选项配置文件`helloworld.json`，目前有两种配置规则
+
+**单行替换规则**：
+
+* 配置由`one_line`字段指定的单行替换字典
+* 格式是：`"<源字符串>"`: [`"<替换字符串A>"`, `<替换字符串B>`,...],
+    * 其中每个 `"<源字符串>"` `/` `"<替换字符串A>"` 被生成为是一个替换选项
+    * 指定的配置应该能至少生成 `3+` 个替换选项
+
+```json
+{
+    "one_line": {
+        "printf": ["print"],
+        "return 0;": ["return 0"],
+        "(\"Hello,Wrold!\")": [" \"Hello,Wrold!\""]
+    }
+}
+```
+
+上面的替换规则会将代码替换成 3 个变种的代码：
+
+```c
+// 变种代码1
+#include <stdio.h>
+int main(int argc, char** argv){
+    print("Hello,Wrold!");
+    return 0;
+}
+```
+
+```c
+// 变种代码2
+#include <stdio.h>
+int main(int argc, char** argv){
+    print("Hello,Wrold!");
+    return 0
+}
+```
+
+```c
+// 变种代码3
+#include <stdio.h>
+int main(int argc, char** argv){
+    print "Hello,Wrold!";
+    return 0
+}
+```
+
+这些变种代码将会作为技能树该知识点该代码选择题的选项。
+
+**多行替换规则**：
+
+* 配置由`multiline`字段指定的多行替换数组
+* 数组的每个元素是一组替换规则，会整组被替换
+
+例如：
+
+```json
+{
+    "multiline": [
+        {
+            "printf": "print"
+        },
+        {
+            "int main(int argc, char** argv){" : "int main(char** argv){",
+            "return 0;" : "return 0",
+        },
+        {
+            "#include <stdio.h>": ""
+        }
+    ]
+}
+```
+
+同样，该配置将支持将源代码生成3个变种代码
+
+```c
+// 变种代码1
+#include <stdio.h>
+int main(int argc, char** argv){
+    print("Hello,Wrold!");
+    return 0;
+}
+```
+
+```c
+// 变种代码2, 注意第2组替换规则，包含了两行替换
+#include <stdio.h>
+int main(char** argv){
+    print("Hello,Wrold!");
+    return 0
+}
+```
+
+```c
+// 变种代码3
+int main(int argc, char** argv){
+    print("Hello,Wrold!");
+    return 0;
+}
+```
+
+## 技能树合成
+
+在根目录下执行 `python main.py` 会合成技能树文件，合成的技能树文件: `data/tree.json`
+* 合成过程中，会自动检查每个目录下 `config.json` 里的 `node_id` 是否存在，不存在则生成
+* 合成过程中，会自动检查每个知识点目录下 `config.json` 里的 `export` 里导出的习题配置，检查是否存在`exercise_id` 字段，如果不存在则生成

data/1.C语言初阶/1.C语言概述/1.C语言发展史/config.json

+{
+  "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+  "keywords": [
+    "C语言概述",
+    "概述",
+    "C语言"
+  ],
+  "children": [
+    {
+      "C语言的起源": {
+        "keywords": [
+          "C语言的起源",
+          "起源",
+          "C语言"
+        ],
+        "children": []
+      }
+    },
+    {
+      "C语言的发展与应用": {
+        "keywords": [
+          "C语言的发展",
+          "C语言的应用",
+          "发展",
+          "应用",
+          "C语言"
+        ],
+        "children": []
+      }
+    }
+  ],
+  "export": [
+    {
+        "file": "helloworld.c",
+        "variants": "helloworld.json",
+        "depends": []
+    }
+  ]
+}
\ No newline at end of file

data/1.C语言初阶/1.C语言概述/1.C语言发展史/helloworld.json

+{
+    
+}
\ No newline at end of file

data/1.C语言初阶/1.C语言概述/config.json

+{
+  "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+  "keywords": [
+    "C语言概述",
+    "概述",
+    "C语言"
+  ]
+}
\ No newline at end of file

data/1.C语言初阶/2.数据类型/1.变量与常量/config.json

+{
+  "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+  "keywords": [
+    "数据类型",
+    "C语言"
+  ],
+  "children": [],
+  "export": []
+}
\ No newline at end of file

data/1.C语言初阶/2.数据类型/2.整数类型/config.json

+{
+  "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+  "keywords": [
+    "数据类型",
+    "C语言"
+  ],
+  "children": [],
+  "export": []
+}
\ No newline at end of file

data/1.C语言初阶/2.数据类型/3.浮点类型/config.json

+{
+  "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+  "keywords": [
+    "数据类型",
+    "C语言"
+  ],
+  "children": [],
+  "export": []
+}
\ No newline at end of file

data/1.C语言初阶/2.数据类型/4.字符类型/config.json

+{
+  "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+  "keywords": [
+    "数据类型",
+    "C语言"
+  ],
+  "children": [],
+  "export": []
+}
\ No newline at end of file

data/1.C语言初阶/2.数据类型/5.布尔类型/config.json

+{
+  "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+  "keywords": [
+    "数据类型",
+    "C语言"
+  ],
+  "children": [],
+  "export": []
+}
\ No newline at end of file

data/1.C语言初阶/2.数据类型/config.json

+{
+  "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+  "keywords": [
+    "数据类型",
+    "C语言"
+  ]
+}
\ No newline at end of file

data/1.C语言初阶/3.运算符/1.赋值运算符/config.json

+{
+  "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+  "keywords": [
+    "运算符",
+    "C语言"
+  ],
+  "children": [],
+  "export": []
+}
\ No newline at end of file

data/1.C语言初阶/3.运算符/10.逗号运算符/config.json

+{
+  "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+  "keywords": [
+    "运算符",
+    "C语言"
+  ],
+  "children": [],
+  "export": []
+}
\ No newline at end of file

data/1.C语言初阶/3.运算符/11.位逻辑运算符/config.json

+{
+  "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+  "keywords": [
+    "运算符",
+    "C语言"
+  ],
+  "children": [],
+  "export": []
+}
\ No newline at end of file

data/1.C语言初阶/3.运算符/12.sizeof运算符和size_t类型/config.json

+{
+  "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+  "keywords": [
+    "运算符",
+    "C语言"
+  ],
+  "children": [],
+  "export": []
+}
\ No newline at end of file

data/1.C语言初阶/3.运算符/13.运算符优先级/config.json

+{
+  "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+  "keywords": [
+    "运算符",
+    "C语言"
+  ],
+  "children": [],
+  "export": []
+}
\ No newline at end of file

data/1.C语言初阶/3.运算符/14.求值顺序/config.json

+{
+  "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+  "keywords": [
+    "运算符",
+    "C语言"
+  ],
+  "children": [],
+  "export": []
+}
\ No newline at end of file

data/1.C语言初阶/3.运算符/2.加法运算符/config.json

+{
+  "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+  "keywords": [
+    "运算符",
+    "C语言"
+  ],
+  "children": [],
+  "export": []
+}
\ No newline at end of file

data/1.C语言初阶/3.运算符/3.减法运算符/config.json

+{
+  "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+  "keywords": [
+    "运算符",
+    "C语言"
+  ],
+  "children": [],
+  "export": []
+}
\ No newline at end of file

data/1.C语言初阶/3.运算符/4.符号运算符/config.json

+{
+  "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+  "keywords": [
+    "运算符",
+    "C语言"
+  ],
+  "children": [],
+  "export": []
+}
\ No newline at end of file

data/1.C语言初阶/3.运算符/5.乘法运算符/config.json

+{
+  "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+  "keywords": [
+    "运算符",
+    "C语言"
+  ],
+  "children": [],
+  "export": []
+}
\ No newline at end of file

data/1.C语言初阶/3.运算符/6.除法运算符/config.json

+{
+  "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+  "keywords": [
+    "运算符",
+    "C语言"
+  ],
+  "children": [],
+  "export": []
+}
\ No newline at end of file

data/1.C语言初阶/3.运算符/7.求模运算符/config.json

+{
+  "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+  "keywords": [
+    "运算符",
+    "C语言"
+  ],
+  "children": [],
+  "export": []
+}
\ No newline at end of file

data/1.C语言初阶/3.运算符/8.递增运算符/config.json

+{
+  "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+  "keywords": [
+    "运算符",
+    "C语言"
+  ],
+  "children": [],
+  "export": []
+}
\ No newline at end of file

data/1.C语言初阶/3.运算符/9.递减运算符/config.json

+{
+  "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+  "keywords": [
+    "运算符",
+    "C语言"
+  ],
+  "children": [],
+  "export": []
+}
\ No newline at end of file

data/1.C语言初阶/3.运算符/config.json

+{
+  "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+  "keywords": [
+    "运算符",
+    "C语言"
+  ]
+}
\ No newline at end of file

data/1.C语言初阶/4.表达式/1.赋值表达式/config.json

+{
+  "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+  "keywords": [
+    "表达式",
+    "C语言"
+  ],
+  "children": [],
+  "export": []
+}
\ No newline at end of file

data/1.C语言初阶/4.表达式/2.算术表达式/config.json

+{
+  "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+  "keywords": [
+    "表达式",
+    "C语言"
+  ],
+  "children": [],
+  "export": []
+}
\ No newline at end of file

data/1.C语言初阶/4.表达式/3.关系表达式/config.json

+{
+  "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+  "keywords": [
+    "表达式",
+    "C语言"
+  ],
+  "children": [],
+  "export": []
+}
\ No newline at end of file

data/1.C语言初阶/4.表达式/4.逻辑表达式/config.json

+{
+  "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+  "keywords": [
+    "表达式",
+    "C语言"
+  ],
+  "children": [],
+  "export": []
+}
\ No newline at end of file

data/1.C语言初阶/4.表达式/5.位逻辑表达式/config.json

+{
+  "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+  "keywords": [
+    "表达式",
+    "C语言"
+  ],
+  "children": [],
+  "export": []
+}
\ No newline at end of file

data/1.C语言初阶/4.表达式/6.逗号表达式/config.json

+{
+  "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+  "keywords": [
+    "表达式",
+    "C语言"
+  ],
+  "children": [],
+  "export": []
+}
\ No newline at end of file

data/1.C语言初阶/4.表达式/config.json

+{
+  "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+  "keywords": [
+    "表达式",
+    "C语言"
+  ]
+}
\ No newline at end of file

data/1.C语言初阶/5.语句与控制流/1.程序块/config.json

+{
+  "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+  "keywords": [
+    "语句",
+    "控制流",
+    "C语言"
+  ],
+  "children": [],
+  "export": []
+}
\ No newline at end of file

data/1.C语言初阶/5.语句与控制流/2.if语句/config.json

+{
+  "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+  "keywords": [
+    "语句",
+    "控制流",
+    "C语言"
+  ],
+  "children": [],
+  "export": []
+}
\ No newline at end of file

data/1.C语言初阶/5.语句与控制流/3.if-else语句/config.json

+{
+  "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+  "keywords": [
+    "语句",
+    "控制流",
+    "C语言"
+  ],
+  "children": [],
+  "export": []
+}
\ No newline at end of file

data/1.C语言初阶/5.语句与控制流/4.else-if语句/config.json

+{
+  "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+  "keywords": [
+    "语句",
+    "控制流",
+    "C语言"
+  ],
+  "children": [],
+  "export": []
+}
\ No newline at end of file

data/1.C语言初阶/5.语句与控制流/5.switch语句/config.json

+{
+  "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+  "keywords": [
+    "语句",
+    "控制流",
+    "C语言"
+  ],
+  "children": [],
+  "export": []
+}
\ No newline at end of file

data/1.C语言初阶/5.语句与控制流/6.while循环与for循环/config.json

+{
+  "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+  "keywords": [
+    "语句",
+    "控制流",
+    "C语言"
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data/1.C语言初阶/5.语句与控制流/9.goto语句/config.json

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

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+                      "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+                      "keywords": [
+                        "数组",
+                        "C语言"
+                      ],
+                      "children": []
+                    }
+                  },
+                  {
+                    "一维数组": {
+                      "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+                      "keywords": [
+                        "数组",
+                        "C语言"
+                      ],
+                      "children": []
+                    }
+                  },
+                  {
+                    "二维数组": {
+                      "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+                      "keywords": [
+                        "数组",
+                        "C语言"
+                      ],
+                      "children": []
+                    }
+                  },
+                  {
+                    "多维数组": {
+                      "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+                      "keywords": [
+                        "数组",
+                        "C语言"
+                      ],
+                      "children": []
+                    }
+                  },
+                  {
+                    "变长数组": {
+                      "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+                      "keywords": [
+                        "数组",
+                        "C语言"
+                      ],
+                      "children": []
+                    }
+                  }
+                ]
+              }
+            },
+            {
+              "指针": {
+                "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+                "keywords": [
+                  "指针",
+                  "C语言"
+                ],
+                "children": [
+                  {
+                    "指针与地址": {
+                      "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+                      "keywords": [
+                        "指针",
+                        "C语言"
+                      ],
+                      "children": []
+                    }
+                  },
+                  {
+                    "指针与函数参数": {
+                      "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+                      "keywords": [
+                        "指针",
+                        "C语言"
+                      ],
+                      "children": []
+                    }
+                  },
+                  {
+                    "指针与数组": {
+                      "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+                      "keywords": [
+                        "指针",
+                        "C语言"
+                      ],
+                      "children": []
+                    }
+                  },
+                  {
+                    "地址算术运算": {
+                      "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+                      "keywords": [
+                        "指针",
+                        "C语言"
+                      ],
+                      "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",
+                      "keywords": [
+                        "指针",
+                        "C语言"
+                      ],
+                      "children": []
+                    }
+                  },
+                  {
+                    "指针与多维数组": {
+                      "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+                      "keywords": [
+                        "指针",
+                        "C语言"
+                      ],
+                      "children": []
+                    }
+                  },
+                  {
+                    "指向函数的指针": {
+                      "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+                      "keywords": [
+                        "指针",
+                        "C语言"
+                      ],
+                      "children": []
+                    }
+                  }
+                ]
+              }
+            }
+          ]
+        }
+      },
+      {
+        "C语言高阶": {
+          "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+          "keywords": [],
+          "children": [
+            {
+              "结构体": {
+                "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+                "keywords": [
+                  "结构体",
+                  "C语言"
+                ],
+                "children": [
+                  {
+                    "结构体简介": {
+                      "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+                      "keywords": [
+                        "结构体",
+                        "C语言"
+                      ],
+                      "children": []
+                    }
+                  },
+                  {
+                    "结构体数组": {
+                      "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+                      "keywords": [
+                        "结构体",
+                        "C语言"
+                      ],
+                      "children": []
+                    }
+                  },
+                  {
+                    "结构体指针": {
+                      "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+                      "keywords": [
+                        "结构体",
+                        "C语言"
+                      ],
+                      "children": []
+                    }
+                  },
+                  {
+                    "结构体与函数": {
+                      "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+                      "keywords": [
+                        "结构体",
+                        "C语言"
+                      ],
+                      "children": []
+                    }
+                  },
+                  {
+                    "链式结构": {
+                      "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+                      "keywords": [
+                        "结构体",
+                        "C语言"
+                      ],
+                      "children": []
+                    }
+                  }
+                ]
+              }
+            },
+            {
+              "联合体": {
+                "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+                "keywords": [
+                  "共用体",
+                  "联合体",
+                  "C语言"
+                ],
+                "children": []
+              }
+            },
+            {
+              "位运算": {
+                "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+                "keywords": [
+                  "位运算",
+                  "位操作",
+                  "C语言"
+                ],
+                "children": [
+                  {
+                    "位和字节": {
+                      "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+                      "keywords": [
+                        "位运算",
+                        "位操作",
+                        "C语言"
+                      ],
+                      "children": []
+                    }
+                  },
+                  {
+                    "二进制数": {
+                      "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+                      "keywords": [
+                        "位运算",
+                        "位操作",
+                        "C语言"
+                      ],
+                      "children": []
+                    }
+                  },
+                  {
+                    "八进制": {
+                      "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+                      "keywords": [
+                        "位运算",
+                        "位操作",
+                        "C语言"
+                      ],
+                      "children": []
+                    }
+                  },
+                  {
+                    "十六进制": {
+                      "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+                      "keywords": [
+                        "位运算",
+                        "位操作",
+                        "C语言"
+                      ],
+                      "children": []
+                    }
+                  },
+                  {
+                    "位逻辑运算符": {
+                      "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+                      "keywords": [
+                        "位运算",
+                        "位操作",
+                        "C语言"
+                      ],
+                      "children": []
+                    }
+                  },
+                  {
+                    "位字段": {
+                      "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+                      "keywords": [
+                        "位运算",
+                        "位操作",
+                        "C语言"
+                      ],
+                      "children": []
+                    }
+                  },
+                  {
+                    "对齐特性": {
+                      "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+                      "keywords": [
+                        "位运算",
+                        "位操作",
+                        "C语言"
+                      ],
+                      "children": []
+                    }
+                  }
+                ]
+              }
+            },
+            {
+              "预处理器": {
+                "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+                "keywords": [
+                  "预处理器",
+                  "预编译器",
+                  "C语言"
+                ],
+                "children": [
+                  {
+                    "宏定义": {
+                      "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+                      "keywords": [
+                        "预处理器",
+                        "预编译器",
+                        "C语言"
+                      ],
+                      "children": []
+                    }
+                  },
+                  {
+                    "#include指令": {
+                      "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+                      "keywords": [
+                        "预处理器",
+                        "预编译器",
+                        "C语言"
+                      ],
+                      "children": []
+                    }
+                  },
+                  {
+                    "#undef指令": {
+                      "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+                      "keywords": [
+                        "预处理器",
+                        "预编译器",
+                        "C语言"
+                      ],
+                      "children": []
+                    }
+                  },
+                  {
+                    "条件编译": {
+                      "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+                      "keywords": [
+                        "预处理器",
+                        "预编译器",
+                        "C语言"
+                      ],
+                      "children": []
+                    }
+                  },
+                  {
+                    "内联函数": {
+                      "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+                      "keywords": [
+                        "预处理器",
+                        "预编译器",
+                        "C语言"
+                      ],
+                      "children": []
+                    }
+                  }
+                ]
+              }
+            },
+            {
+              "文件": {
+                "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+                "keywords": [
+                  "文件",
+                  "C语言"
+                ],
+                "children": [
+                  {
+                    "文件的基本操作": {
+                      "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+                      "keywords": [
+                        "文件",
+                        "C语言"
+                      ],
+                      "children": [
+                        {
+                          "文件指针": {
+                            "keywords": [
+                              "文件指针",
+                              "文件"
+                            ],
+                            "children": []
+                          }
+                        },
+                        {
+                          "文件的打开": {
+                            "keywords": [
+                              "文件的打开",
+                              "文件",
+                              "文件打开"
+                            ],
+                            "children": []
+                          }
+                        },
+                        {
+                          "文件的关闭": {
+                            "keywords": [
+                              "文件的关闭",
+                              "文件",
+                              "文件关闭"
+                            ],
+                            "children": []
+                          }
+                        }
+                      ]
+                    }
+                  },
+                  {
+                    "文件的读写": {
+                      "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+                      "keywords": [
+                        "文件",
+                        "C语言"
+                      ],
+                      "children": []
+                    }
+                  }
+                ]
+              }
+            },
+            {
+              "存储管理": {
+                "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+                "keywords": [
+                  "存储管理",
+                  "内存管理",
+                  "C语言"
+                ],
+                "children": [
+                  {
+                    "存储类别": {
+                      "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+                      "keywords": [
+                        "存储管理",
+                        "内存管理",
+                        "C语言"
+                      ],
+                      "children": []
+                    }
+                  },
+                  {
+                    "分配内存：malloc()和free()": {
+                      "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+                      "keywords": [
+                        "存储管理",
+                        "内存管理",
+                        "C语言"
+                      ],
+                      "children": []
+                    }
+                  }
+                ]
+              }
+            },
+            {
+              "标准函数库": {
+                "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+                "keywords": [
+                  "标准函数库",
+                  "标准库",
+                  "C语言"
+                ],
+                "children": [
+                  {
+                    "数学库": {
+                      "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+                      "keywords": [
+                        "标准函数库",
+                        "标准库",
+                        "C语言"
+                      ],
+                      "children": []
+                    }
+                  },
+                  {
+                    "通用工具库": {
+                      "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+                      "keywords": [
+                        "标准函数库",
+                        "标准库",
+                        "C语言"
+                      ],
+                      "children": []
+                    }
+                  },
+                  {
+                    "断言库 ": {
+                      "node_id": "569d5e11c4fc5de7844053d9a733c5e8",
+                      "keywords": [
+                        "标准函数库",
+                        "标准库",
+                        "C语言"
+                      ],
+                      "children": []
+                    }
+                  }
+                ]
+              }
+            }
+          ]
+        }
+      }
+    ]
+  }
+}
\ No newline at end of file

main.py

+from src.tree import gen_tree
+
+if __name__ == '__main__':
+    gen_tree('data')

requirement.txt

+uuid==1.30
\ No newline at end of file

src/tree.py

+from genericpath import exists
+import json
+import os
+import uuid
+import sys
+import re
+
+
+def load_json(p):
+    with open(p, 'r') as f:
+        return json.loads(f.read())
+
+
+def dump_json(p, j, exist_ok=False, override=False):
+    if os.path.exists(p):
+        if exist_ok:
+            if not override:
+                return
+        else:
+            print(f"{p} already exist")
+            sys.exit(0)
+
+    with open(p, 'w') as f:
+        f.write(json.dumps(j, indent=2, ensure_ascii=False))
+
+
+def parse_no_name(d):
+    p = r'(\d+)\.(.*)'
+    m = re.search(p, d)
+
+    try:
+        no = int(m.group(1))
+        dir_name = m.group(2)
+    except:
+        sys.exit(0)
+
+    return no, dir_name
+
+
+def gen_tree(data_path):
+    root = {}
+
+    def gen_node_id():
+        return ''.join(str(uuid.uuid5(uuid.NAMESPACE_URL, 'skill_tree')).split('-'))
+
+    def list_dir(p):
+        v = os.listdir(p)
+        v.sort()
+        for no_name in v:
+            no_dir = os.path.join(p, no_name)
+            if os.path.isdir(no_dir):
+                yield no_dir, no_name
+
+    def ensure_node_id(cfg_path, cfg):
+        if cfg.get('node_id') is None:
+            cfg['node_id'] = gen_node_id()
+            dump_json(cfg_path, cfg, exist_ok=True, override=True)
+
+    def make_node(name, node_id, keywords, children=None):
+        node = {}
+        node_children = children or []
+        node[name] = {
+            'node_id': node_id,
+            'keywords': keywords,
+            'children': node_children
+        }
+        return node, node_children
+
+    # 根节点
+    cfg_path = os.path.join(data_path, 'config.json')
+    cfg = load_json(cfg_path)
+    ensure_node_id(cfg_path, cfg)
+    tree_node = {
+        "node_id": cfg['node_id'],
+        "keywords": cfg['keywords'],
+        "children": []
+    }
+    root[cfg['tree_name']] = tree_node
+
+    # 难度节点
+    for level_no_dir, level_no_name in list_dir(data_path):
+        print(level_no_dir)
+        no, level_name = parse_no_name(level_no_name)
+        cfg_path = os.path.join(level_no_dir, 'config.json')
+        cfg = load_json(cfg_path)
+        ensure_node_id(cfg_path, cfg)
+
+        level_node, level_node_children = make_node(
+            level_name, cfg['node_id'], cfg['keywords'])
+        tree_node['children'].append(level_node)
+
+        # 章节点
+        for chapter_no_dir, chapter_no_name in list_dir(level_no_dir):
+            no, chapter_name = parse_no_name(chapter_no_name)
+            cfg_path = os.path.join(chapter_no_dir, 'config.json')
+            ensure_node_id(cfg_path, cfg)
+            cfg = load_json(cfg_path)
+
+            chapter_node, chapter_node_children = make_node(
+                chapter_name, cfg['node_id'], cfg['keywords'])
+            level_node_children.append(chapter_node)
+
+            # 知识点
+            for section_no_dir, section_no_name in list_dir(chapter_no_dir):
+                no, section_name = parse_no_name(section_no_name)
+                cfg_path = os.path.join(section_no_dir, 'config.json')
+                ensure_node_id(cfg_path, cfg)
+                cfg = load_json(cfg_path)
+
+                section_node, section_node_children = make_node(
+                    section_name, cfg['node_id'], cfg['keywords'], cfg['children'])
+                chapter_node_children.append(section_node)
+
+                # 确保习题分配了习题ID
+                for export in cfg['export']:
+                    if export.get('exercise_id') is None:
+                        export['exercise_id'] = gen_node_id()
+                dump_json(cfg_path, cfg, exist_ok=True, override=True)
+
+    # 保存技能树骨架
+    tree_path = os.path.join(data_path, 'tree.json')
+    dump_json(tree_path, root, exist_ok=True, override=True)