feat: add cpp.md #77

2022-11-16 20:23:14 +08:00 · 2022-11-16 20:23:14 +08:00 · 51bd7303d1
commit 51bd7303d1
parent 7d26adb7a6
4 changed files with 796 additions and 1 deletions
--- a/README.md
+++ b/README.md
@ -34,6 +34,7 @@ Quick Reference
 [Bash](./docs/bash.md)<!--rehype:style=background: rgb(72 143 223/var(\-\-bg\-opacity));-->
 [C](./docs/c.md)<!--rehype:style=background: rgb(92 107 192/var(\-\-bg\-opacity));-->
 [C#](./docs/cs.md)<!--rehype:style=background: rgb(6 147 13/var(\-\-bg\-opacity));&class=contributing-->
+[CPP](./docs/cpp.md)<!--rehype:style=background: rgb(6 147 13/var(\-\-bg\-opacity));&class=contributing-->
 [Dart](./docs/dart.md)<!--rehype:style=background: rgb(64 196 255/var(\-\-bg\-opacity));-->
 [Docker](./docs/docker.md)<!--rehype:style=background: rgb(72 143 223/var(\-\-bg\-opacity));-->
 [Dockerfile](./docs/dockerfile.md)<!--rehype:style=background: rgb(0 72 153/var(\-\-bg\-opacity));&class=tag&data-lang=Docker-->
--- a/docs/cpp.md
+++ b/docs/cpp.md
@ -0,0 +1,792 @@
+C++ 备忘清单
+===
+
+提供基本语法和方法的 [C++](https://zh.cppreference.com/) 快速参考备忘单
+
+入门
+--------
+
+### hello.cpp
+
+```cpp
+#include <iostream>
+int main() {
+    std::cout << "Hello Quick Reference\n";
+    return 0;
+}
+```
+
+编译运行
+
+```shell
+$ g++ hello.cpp -o hello
+$ ./hello
+Hello Quick Reference
+```
+
+### 变量
+
+```cpp
+int number = 5;       // 整数
+float f = 0.95;       // 浮点数
+double PI = 3.14159;  // 浮点数
+char yes = 'Y';       // 特点
+std::string s = "ME"; // 字符串（文本）
+bool isRight = true;  // 布尔值
+// 常量
+const float RATE = 0.8;
+```
+
+----
+
+```cpp
+int age {25};      // 自 C++11
+std::cout << age;  // 打印 25
+```
+
+### 原始数据类型
+
+数据类型 | 大小 | 范围
+:- | -- | --
+`int`     | 4 bytes        | -2<sup>31</sup> 到 2<sup>31</sup>-1
+`float`   | 4 bytes        | _N/A_
+`double`  | 8 bytes        | _N/A_
+`char`    | 1 byte         | -128 到 127
+`bool`    | 1 byte         | `true` / `false`
+`void`    | _N/A_          | _N/A_
+`wchar_t` | 2 到 4 bytes   | 1 个宽字符
+<!--rehype:className=show-header-->
+
+### 用户输入
+
+```cpp
+int num;
+std::cout << "Type a number: ";
+std::cin >> num;
+std::cout << "You entered " << num;
+```
+
+### 交换
+
+```cpp
+int a = 5, b = 10;
+std::swap(a, b);
+// 输出: a=10, b=5
+std::cout << "a=" << a << ", b=" << b;
+```
+
+### 注释
+
+```cpp
+// C++中的单行注释
+/* 这是一个多行注释
+    在 C++ 中 */
+```
+
+### If 语句
+
+```cpp
+if (a == 10) {
+    // do something
+}
+```
+
+查看: [条件](#c-条件)
+
+### 循环
+
+```cpp
+for (int i = 0; i < 10; i++) {
+    std::cout << i << "\n";
+}
+```
+
+查看: [循环 Loops](#c-循环)
+
+### 函数
+<!--rehype:wrap-class=row-span-2-->
+
+```cpp
+#include <iostream>
+ 
+void hello();   // 声明
+ 
+int main() {    // 主函数
+    hello();    // 执行函数
+}
+ 
+void hello() { // 定义
+  std::cout << "Hello Quick Reference!\n";
+}
+```
+
+查看: [函数 Functions](#c-函数)
+
+### 引用
+
+```cpp
+int i = 1;
+int& ri = i; // ri 是对 i 的引用
+ri = 2; // i 现在改为 2
+std::cout << "i=" << i;
+i = 3;   // i 现在改为 3
+std::cout << "ri=" << ri;
+```
+
+`ri` 和 `i` 指的是相同的内存位置
+
+### 命名空间
+
+```cpp
+#include <iostream>
+namespace ns1 {int val(){return 5;}}
+int main()
+{
+    std::cout << ns1::val();
+}
+```
+
+----
+
+```cpp
+#include <iostream>
+namespace ns1 {int val(){return 5;}}
+using namespace ns1;
+using namespace std;
+int main()
+{
+    cout << val(); 
+}
+```
+
+名称空间允许名称下的全局标识符
+
+C++ 数组
+------
+
+### 定义
+
+```cpp
+std::array<int, 3> marks; // 定义
+marks[0] = 92;
+marks[1] = 97;
+marks[2] = 98;
+// 定义和初始化
+std::array<int, 3> = {92, 97, 98};
+// 有空成员
+std::array<int, 3> marks = {92, 97};
+std::cout << marks[2]; // 输出: 0
+```
+
+### 操控
+
+```cpp
+┌─────┬─────┬─────┬─────┬─────┬─────┐
+| 92  | 97  | 98  | 99  | 98  | 94  |
+└─────┴─────┴─────┴─────┴─────┴─────┘
+   0     1     2     3     4     5
+```
+
+----
+
+```cpp
+std::array<int, 6> marks = {
+  92, 97, 98, 99, 98, 94
+};
+// 打印第一个元素
+std::cout << marks[0];
+// 将第 2 个元素更改为 99
+marks[1] = 99;
+// 从用户那里获取输入
+std::cin >> marks[2];
+```
+
+### 展示
+
+```cpp
+char ref[5] = {'R', 'e', 'f'};
+// 基于范围的for循环
+for (const int &n : ref) {
+    std::cout << std::string(1, n);
+}
+// 传统的for循环
+for (int i = 0; i < sizeof(ref); ++i) {
+    std::cout << ref[i];
+}
+```
+
+### 多维
+
+```cpp
+     j0   j1   j2   j3   j4   j5
+   ┌────┬────┬────┬────┬────┬────┐
+i0 | 1  | 2  | 3  | 4  | 5  | 6  |
+   ├────┼────┼────┼────┼────┼────┤
+i1 | 6  | 5  | 4  | 3  | 2  | 1  |
+   └────┴────┴────┴────┴────┴────┘
+```
+
+----
+
+```cpp
+int x[2][6] = {
+    {1,2,3,4,5,6}, {6,5,4,3,2,1}
+};
+for (int i = 0; i < 2; ++i) {
+    for (int j = 0; j < 6; ++j) {
+        std::cout << x[i][j] << " ";
+    }
+}
+// 输出: 1 2 3 4 5 6 6 5 4 3 2 1 
+```
+
+C++ 条件
+------------
+
+### If Clause
+
+```cpp
+if (a == 10) {
+    // do something
+}
+```
+
+----
+
+```cpp
+int number = 16;
+if (number % 2 == 0)
+{
+    std::cout << "even";
+}
+else
+{
+    std::cout << "odd";
+}
+// 输出: even
+```
+
+### Else if 语句
+
+```cpp
+int score = 99;
+if (score == 100) {
+    std::cout << "Superb";
+}
+else if (score >= 90) {
+    std::cout << "Excellent";
+}
+else if (score >= 80) {
+    std::cout << "Very Good";
+}
+else if (score >= 70) {
+    std::cout << "Good";
+}
+else if (score >= 60)
+    std::cout << "OK";
+else
+    std::cout << "What?";
+```
+
+### 运算符
+<!--rehype:wrap-class=row-span-2-->
+
+#### 关系运算符
+
+:--|--
+:--|--
+`a == b` | a 等于 b
+`a != b` | a 不等于 b
+`a < b`  | a 小于 b
+`a > b`  | a 大于 b
+`a <= b` | a 小于或等于 b
+`a >= b` | a 大于或等于 b
+
+#### 赋值运算符
+
+范例 | 相当于
+:--|--
+`a += b` | _Aka_ `a = a + b`
+`a -= b` | _Aka_ `a = a - b`
+`a *= b` | _Aka_ `a = a * b`
+`a /= b` | _Aka_ `a = a / b`
+`a %= b` | _Aka_ `a = a % b`
+
+#### 逻辑运算符
+
+| Example        | Meaning                |
+|----------------|------------------------|
+| `exp1 && exp2` | Both are true _(AND)_  |
+| `exp1 || exp2` | Either is true _(OR)_  |
+| `!exp`         | `exp` is false _(NOT)_ |
+
+#### 位运算符
+
+| Operator | Description             |
+|----------|-------------------------|
+| `a & b`  | Binary AND              |
+| `a | b`  | Binary OR               |
+| `a ^ b`  | Binary XOR              |
+| `a ~ b`  | Binary One's Complement |
+| `a << b` | Binary Shift Left       |
+| `a >> b` | Binary Shift Right      |
+
+### 三元运算符
+
+```
+           ┌── True ──┐
+Result = Condition ? Exp1 : Exp2;
+           └───── False ─────┘
+```
+
+----
+
+```cpp
+int x = 3, y = 5, max;
+max = (x > y) ? x : y;
+// 输出: 5
+std::cout << max << std::endl;
+```
+
+----
+
+```cpp
+int x = 3, y = 5, max;
+if (x > y) {
+    max = x;
+} else {
+    max = y;
+}
+// 输出: 5
+std::cout << max << std::endl;
+```
+
+### switch 语句
+
+```cpp
+int num = 2;
+switch (num) {
+    case 0:
+        std::cout << "Zero";
+        break;
+    case 1:
+        std::cout << "One";
+        break;
+    case 2:
+        std::cout << "Two";
+        break;
+    case 3:
+        std::cout << "Three";
+        break;
+    default:
+        std::cout << "What?";
+        break;
+}
+```
+
+C++ 循环
+------------
+
+### While
+
+```cpp
+int i = 0;
+while (i < 6) {
+    std::cout << i++;
+}
+// 输出: 012345
+```
+
+### Do-while
+
+```cpp
+int i = 1;
+do {
+    std::cout << i++;
+} while (i <= 5);
+// 输出: 12345
+```
+
+### Continue 语句
+
+```cpp
+for (int i = 0; i < 10; i++) {
+    if (i % 2 == 0) {
+        continue;
+    }
+    std::cout << i;
+} // 输出: 13579
+```
+
+### 无限循环
+
+```cpp
+while (true) { // true or 1
+    std::cout << "无限循环";
+}
+```
+
+----
+
+```cpp
+for (;;) {
+    std::cout << "无限循环";
+}
+```
+
+----
+
+```cpp
+for(int i = 1; i > 0; i++) {
+    std::cout << "infinite loop";
+}
+```
+
+### for_each (C++11 起)
+
+```cpp
+#include <iostream>
+int main()
+{
+    auto print = [](int num) {
+      std::cout << num << std::endl;
+    };
+    std::array<int, 4> arr = {1, 2, 3, 4};
+    std::for_each(arr.begin(), arr.end(), print);
+    return 0;
+}
+```
+<!--rehype:className=wrap-text-->
+
+### 基于范围 (C++11 起)
+
+```cpp
+for (int n : {1, 2, 3, 4, 5}) {
+    std::cout << n << " ";
+}
+// 输出: 1 2 3 4 5
+```
+
+----
+
+```cpp
+std::string hello = "Quick Reference.ME";
+for (char c: hello)
+{
+    std::cout << c << " ";
+}
+// 输出: Q u i c k R e f . M E 
+```
+
+### 中断语句
+
+```cpp
+int password, times = 0;
+while (password != 1234) {
+    if (times++ >= 3) {
+        std::cout << "Locked!\n";
+        break;
+    }
+    std::cout << "Password: ";
+    std::cin >> password; // input
+}
+```
+
+### Several variations
+
+```cpp
+for (int i = 0, j = 2; i < 3; i++, j--){
+    std::cout << "i=" << i << ",";
+    std::cout << "j=" << j << ";";
+}
+// 输出: i=0,j=2;i=1,j=1;i=2,j=0;
+```
+
+C++ 函数
+------------
+
+### 参数和返回
+
+```cpp
+#include <iostream>
+int add(int a, int b) {
+    return a + b;  
+}
+int main() {
+    std::cout << add(10, 20); 
+}
+```
+
+`add` 是一个接受 2 个整数并返回整数的函数
+
+### 重载
+
+```cpp
+void fun(string a, string b) {
+    std::cout << a + " " + b;
+}
+void fun(string a) {
+    std::cout << a;
+}
+void fun(int a) {
+    std::cout << a;
+}
+```
+
+### 内置函数
+
+```cpp
+#include <iostream>
+#include <cmath> // 导入库
+ 
+int main() {
+    // sqrt() 来自 cmath
+    std::cout << sqrt(9);
+}
+```
+
+C++ 预处理器
+------------
+
+### 预处理器
+<!--rehype:wrap-class=row-span-3-->
+
+- [if](https://zh.cppreference.com/w/cpp/preprocessor/conditional)
+- [elif](https://zh.cppreference.com/w/cpp/preprocessor/conditional)
+- [else](https://zh.cppreference.com/w/cpp/preprocessor/conditional)
+- [endif](https://zh.cppreference.com/w/cpp/preprocessor/conditional)
+- [ifdef](https://zh.cppreference.com/w/cpp/preprocessor/conditional)
+- [ifndef](https://zh.cppreference.com/w/cpp/preprocessor/conditional)
+- [define](https://zh.cppreference.com/w/cpp/preprocessor/replace)
+- [undef](https://zh.cppreference.com/w/cpp/preprocessor/replace)
+- [include](https://zh.cppreference.com/w/cpp/preprocessor/include)
+- [line](https://zh.cppreference.com/w/cpp/preprocessor/line)
+- [error](https://zh.cppreference.com/w/cpp/preprocessor/error)
+- [pragma](https://zh.cppreference.com/w/cpp/preprocessor/impl)
+- [defined](https://zh.cppreference.com/w/cpp/preprocessor/conditional)
+- [__has_include](https://zh.cppreference.com/w/cpp/feature_test)
+- [__has_cpp_attribute](https://zh.cppreference.com/w/cpp/feature_test)
+- [export](https://zh.cppreference.com/w/cpp/keyword/export)
+- [import](https://zh.cppreference.com/mwiki/index.php?title=cpp/keyword/import&amp;action=edit&amp;redlink=1)
+- [module](https://zh.cppreference.com/mwiki/index.php?title=cpp/keyword/module&amp;action=edit&amp;redlink=1)
+<!--rehype:className=style-none cols-2-->
+
+### Includes
+
+```cpp
+#include "iostream"
+#include <iostream>
+```
+
+### Defines
+
+```cpp
+#define FOO
+#define FOO "hello"
+#undef FOO
+```
+
+### If
+<!--rehype:wrap-class=row-span-2-->
+
+```cpp
+#ifdef DEBUG
+  console.log('hi');
+#elif defined VERBOSE
+  ...
+#else
+  ...
+#endif
+```
+
+### Error
+
+```cpp
+#if VERSION == 2.0
+  #error Unsupported
+  #warning Not really supported
+#endif
+```
+
+### 宏
+
+```cpp
+#define DEG(x) ((x) * 57.29)
+```
+
+### 令牌连接
+
+```cpp
+#define DST(name) name##_s name##_t
+DST(object);   #=> object_s object_t;
+```
+
+### 字符串化
+
+```cpp
+#define STR(name) #name
+char * a = STR(object);   #=> char * a = "object";
+```
+<!--rehype:className=wrap-text-->
+
+### 文件和行
+
+```cpp
+#define LOG(msg) console.log(__FILE__, __LINE__, msg)
+#=> console.log("file.txt", 3, "hey")
+```
+<!--rehype:className=wrap-text-->
+
+各种各样的
+-------------
+
+### 转义序列
+
+转义序列 | 说明
+:--|--
+`\b`             | 退格键
+`\f`             | 换页
+`\n`             | 新队
+`\r`             | 返回
+`\t`             | 水平制表符
+`\v`             | 垂直制表符
+`\\`             | 反斜杠
+`\'`             | 单引号
+`\"`             | 双引号
+`\?`             | 问号
+`\0`             | 空字符
+
+### 关键字
+<!--rehype:wrap-class=row-span-2 col-span-2-->
+
+- [alignas](https://zh.cppreference.com/w/cpp/keyword/alignas)
+- [alignof](https://zh.cppreference.com/w/cpp/keyword/alignof)
+- [and](https://zh.cppreference.com/w/cpp/keyword/and)
+- [and_eq](https://zh.cppreference.com/w/cpp/keyword/and_eq)
+- [asm](https://zh.cppreference.com/w/cpp/keyword/asm)
+- [atomic_cancel](https://zh.cppreference.com/w/cpp/keyword/atomic_cancel)
+- [atomic_commit](https://zh.cppreference.com/w/cpp/keyword/atomic_commit)
+- [atomic_noexcept](https://zh.cppreference.com/w/cpp/keyword/atomic_noexcept)
+- [auto](https://zh.cppreference.com/w/cpp/keyword/auto)
+- [bitand](https://zh.cppreference.com/w/cpp/keyword/bitand)
+- [bitor](https://zh.cppreference.com/w/cpp/keyword/bitor)
+- [bool](https://zh.cppreference.com/w/cpp/keyword/bool)
+- [break](https://zh.cppreference.com/w/cpp/keyword/break)
+- [case](https://zh.cppreference.com/w/cpp/keyword/case)
+- [catch](https://zh.cppreference.com/w/cpp/keyword/catch)
+- [char](https://zh.cppreference.com/w/cpp/keyword/char)
+- [char8_t](https://zh.cppreference.com/w/cpp/keyword/char8_t)
+- [char16_t](https://zh.cppreference.com/w/cpp/keyword/char16_t)
+- [char32_t](https://zh.cppreference.com/w/cpp/keyword/char32_t)
+- [class](https://zh.cppreference.com/w/cpp/keyword/class)
+- [compl](https://zh.cppreference.com/w/cpp/keyword/compl)
+- [concept](https://zh.cppreference.com/w/cpp/keyword/concept)
+- [const](https://zh.cppreference.com/w/cpp/keyword/const)
+- [consteval](https://zh.cppreference.com/w/cpp/keyword/consteval)
+- [constexpr](https://zh.cppreference.com/w/cpp/keyword/constexpr)
+- [constinit](https://zh.cppreference.com/w/cpp/keyword/constinit)
+- [const_cast](https://zh.cppreference.com/w/cpp/keyword/const_cast)
+- [continue](https://zh.cppreference.com/w/cpp/keyword/continue)
+- [co_await](https://zh.cppreference.com/w/cpp/keyword/co_await)
+- [co_return](https://zh.cppreference.com/w/cpp/keyword/co_return)
+- [co_yield](https://zh.cppreference.com/w/cpp/keyword/co_yield)
+- [decltype](https://zh.cppreference.com/w/cpp/keyword/decltype)
+- [default](https://zh.cppreference.com/w/cpp/keyword/default)
+- [delete](https://zh.cppreference.com/w/cpp/keyword/delete)
+- [do](https://zh.cppreference.com/w/cpp/keyword/do)
+- [double](https://zh.cppreference.com/w/cpp/keyword/double)
+- [dynamic_cast](https://zh.cppreference.com/w/cpp/keyword/dynamic_cast)
+- [else](https://zh.cppreference.com/w/cpp/keyword/else)
+- [enum](https://zh.cppreference.com/w/cpp/keyword/enum)
+- [explicit](https://zh.cppreference.com/w/cpp/keyword/explicit)
+- [export](https://zh.cppreference.com/w/cpp/keyword/export)
+- [extern](https://zh.cppreference.com/w/cpp/keyword/extern)
+- [false](https://zh.cppreference.com/w/cpp/keyword/false)
+- [float](https://zh.cppreference.com/w/cpp/keyword/float)
+- [for](https://zh.cppreference.com/w/cpp/keyword/for)
+- [friend](https://zh.cppreference.com/w/cpp/keyword/friend)
+- [goto](https://zh.cppreference.com/w/cpp/keyword/goto)
+- [if](https://zh.cppreference.com/w/cpp/keyword/if)
+- [inline](https://zh.cppreference.com/w/cpp/keyword/inline)
+- [int](https://zh.cppreference.com/w/cpp/keyword/int)
+- [long](https://zh.cppreference.com/w/cpp/keyword/long)
+- [mutable](https://zh.cppreference.com/w/cpp/keyword/mutable)
+- [namespace](https://zh.cppreference.com/w/cpp/keyword/namespace)
+- [new](https://zh.cppreference.com/w/cpp/keyword/new)
+- [noexcept](https://zh.cppreference.com/w/cpp/keyword/noexcept)
+- [not](https://zh.cppreference.com/w/cpp/keyword/not)
+- [not_eq](https://zh.cppreference.com/w/cpp/keyword/not_eq)
+- [nullptr](https://zh.cppreference.com/w/cpp/keyword/nullptr)
+- [operator](https://zh.cppreference.com/w/cpp/keyword/operator)
+- [or](https://zh.cppreference.com/w/cpp/keyword/or)
+- [or_eq](https://zh.cppreference.com/w/cpp/keyword/or_eq)
+- [private](https://zh.cppreference.com/w/cpp/keyword/private)
+- [protected](https://zh.cppreference.com/w/cpp/keyword/protected)
+- [public](https://zh.cppreference.com/w/cpp/keyword/public)
+- [reflexpr](https://zh.cppreference.com/w/cpp/keyword/reflexpr)
+- [register](https://zh.cppreference.com/w/cpp/keyword/register)
+- [reinterpret_cast](https://zh.cppreference.com/w/cpp/keyword/reinterpret_cast)
+- [requires](https://zh.cppreference.com/w/cpp/keyword/requires)
+- [return](https://zh.cppreference.com/w/cpp/language/return)
+- [short](https://zh.cppreference.com/w/cpp/keyword/short)
+- [signed](https://zh.cppreference.com/w/cpp/keyword/signed)
+- [sizeof](https://zh.cppreference.com/w/cpp/keyword/sizeof)
+- [static](https://zh.cppreference.com/w/cpp/keyword/static)
+- [static_assert](https://zh.cppreference.com/w/cpp/keyword/static_assert)
+- [static_cast](https://zh.cppreference.com/w/cpp/keyword/static_cast)
+- [struct](https://zh.cppreference.com/w/cpp/keyword/struct)
+- [switch](https://zh.cppreference.com/w/cpp/keyword/switch)
+- [synchronized](https://zh.cppreference.com/w/cpp/keyword/synchronized)
+- [template](https://zh.cppreference.com/w/cpp/keyword/template)
+- [this](https://zh.cppreference.com/w/cpp/keyword/this)
+- [thread_local](https://zh.cppreference.com/w/cpp/keyword/thread_local)
+- [throw](https://zh.cppreference.com/w/cpp/keyword/throw)
+- [true](https://zh.cppreference.com/w/cpp/keyword/true)
+- [try](https://zh.cppreference.com/w/cpp/keyword/try)
+- [typedef](https://zh.cppreference.com/w/cpp/keyword/typedef)
+- [typeid](https://zh.cppreference.com/w/cpp/keyword/typeid)
+- [typename](https://zh.cppreference.com/w/cpp/keyword/typename)
+- [union](https://zh.cppreference.com/w/cpp/keyword/union)
+- [unsigned](https://zh.cppreference.com/w/cpp/keyword/unsigned)
+- [using](https://zh.cppreference.com/w/cpp/keyword/using)
+- [virtual](https://zh.cppreference.com/w/cpp/keyword/virtual)
+- [void](https://zh.cppreference.com/w/cpp/keyword/void)
+- [volatile](https://zh.cppreference.com/w/cpp/keyword/volatile)
+- [wchar_t](https://zh.cppreference.com/w/cpp/keyword/wchar_t)
+- [while](https://zh.cppreference.com/w/cpp/keyword/while)
+- [xor](https://zh.cppreference.com/w/cpp/keyword/xor)
+- [xor_eq](https://zh.cppreference.com/w/cpp/keyword/xor_eq)
+- [final](https://zh.cppreference.com/w/cpp/language/final)
+- [override](https://zh.cppreference.com/w/cpp/language/override)
+- [transaction_safe](https://zh.cppreference.com/w/cpp/language/transactional_memory)
+- [transaction_safe_dynamic](https://zh.cppreference.com/w/cpp/language/transactional_memory)
+<!--rehype:className=style-none cols-5-->
+
+### 预处理器
+
+- [if](https://zh.cppreference.com/w/cpp/preprocessor/conditional)
+- [elif](https://zh.cppreference.com/w/cpp/preprocessor/conditional)
+- [else](https://zh.cppreference.com/w/cpp/preprocessor/conditional)
+- [endif](https://zh.cppreference.com/w/cpp/preprocessor/conditional)
+- [ifdef](https://zh.cppreference.com/w/cpp/preprocessor/conditional)
+- [ifndef](https://zh.cppreference.com/w/cpp/preprocessor/conditional)
+- [define](https://zh.cppreference.com/w/cpp/preprocessor/replace)
+- [undef](https://zh.cppreference.com/w/cpp/preprocessor/replace)
+- [include](https://zh.cppreference.com/w/cpp/preprocessor/include)
+- [line](https://zh.cppreference.com/w/cpp/preprocessor/line)
+- [error](https://zh.cppreference.com/w/cpp/preprocessor/error)
+- [pragma](https://zh.cppreference.com/w/cpp/preprocessor/impl)
+- [defined](https://zh.cppreference.com/w/cpp/preprocessor/conditional)
+- [__has_include](https://zh.cppreference.com/w/cpp/feature_test)
+- [__has_cpp_attribute](https://zh.cppreference.com/w/cpp/feature_test)
+- [export](https://zh.cppreference.com/w/cpp/keyword/export)
+- [import](https://zh.cppreference.com/mwiki/index.php?title=cpp/keyword/import&amp;action=edit&amp;redlink=1)
+- [module](https://zh.cppreference.com/mwiki/index.php?title=cpp/keyword/module&amp;action=edit&amp;redlink=1)
+<!--rehype:className=style-none cols-2-->
+
+另见
+----
+
+- [C++ Infographics & Cheat Sheets](https://hackingcpp.com/cpp/cheat_sheets.html) _(hackingcpp.com)_
+- [C++ reference](https://zh.cppreference.com/w/) _(cppreference.com)_
+- [C++ Language Tutorials](http://www.cplusplus.com/doc/tutorial/) _(cplusplus.com)_
--- a/docs/npm.md
+++ b/docs/npm.md
@ -440,4 +440,4 @@ ELECTRON_BUILDER_BINARIES_MIRROR=https://npmmirror.com/mirrors/electron-builder-

 - [npm 仓库、网站和命令行界面的文档](https://docs.npmjs.com/) _(npmjs.com)_
 - [npmmirror 中国镜像站](https://npmmirror.com/) _(npmmirror.com)_
- [](https://michaelcurrin.github.io/dev-cheatsheets/cheatsheets/package-managers/javascript/npm/commands/npx.html) _(michaelcurrin.github.io)_
+- [Dev Cheatsheets npx](https://michaelcurrin.github.io/dev-cheatsheets/cheatsheets/package-managers/javascript/npm/commands/npx.html) _(michaelcurrin.github.io)_
--- a/scripts/assets/cpp.svg
+++ b/scripts/assets/cpp.svg
@ -0,0 +1,2 @@
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