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doc: Update cpp.md (#933)

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Hao He
2025-03-10 11:14:54 +08:00
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parent 828afdad47
commit e3dbd1b196
1 changed files with 11 additions and 11 deletions
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docs/cpp.md
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@ -30,7 +30,7 @@ Hello Quick Reference
int number = 5; // 整数 int number = 5; // 整数
float f = 0.95; // 浮点数 float f = 0.95; // 浮点数
double PI = 3.14159; // 浮点数 double PI = 3.14159; // 浮点数
char yes = 'Y'; // 特点 char yes = 'Y'; // 字符
std::string s = "ME"; // 字符串（文本） std::string s = "ME"; // 字符串（文本）
bool isRight = true; // 布尔值 bool isRight = true; // 布尔值
// 常量 // 常量
@ -327,14 +327,14 @@ else
#### 位运算符 #### 位运算符
| Operator | Description | | 运算符 | 描述 |
|----------|-------------------------| |--------|------|
| `a & b` | Binary AND | | `a & b` | 按位与 |
| `a | b` | Binary OR | | <code>a &#124; b</code> | 按位或 |
| `a ^ b` | Binary XOR | | `a ^ b` | 按位异或 |
| `a ~ b` | Binary One's Complement | | `~a` | 按位取反 |
| `a << b` | Binary Shift Left | | `a << b` | 左移 |
| `a >> b` | Binary Shift Right | | `a >> b` | 右移 |
### 三元运算符 ### 三元运算符
@ -621,7 +621,7 @@ auto func = []() -> return_type { };
? val1 : val2; ? val1 : val2;
}; };
auto func2 = [&, val1]() -> int auto func2 = [&, val1]() -> string
{ {
return str1 == std::to_string(val1) return str1 == std::to_string(val1)
? str1 : str2; ? str1 : str2;
@ -926,7 +926,7 @@ int val = result.get();
extern double foo(int val) {} extern double foo(int val) {}
std::future<double> result = std::future<double> result =
async(foo, 5); std::async(foo, 5);
//返回值类型 //返回值类型
std::future_status status; std::future_status status;