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来自cppreference.com
< cpp

 
 
C + +语言
大会的主题
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General topics
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流量控制
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Flow control
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条件执行语句
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Conditional execution statements
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迭代语句
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Iteration statements
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跳转语句
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Jump statements
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功能
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Functions
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函数声明
lambda函数的声明
函数模板
的历史。内嵌说明
异常规范 (过时了)
noexcept说明 (C++11)
例外
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Exceptions
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命名空间
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Namespaces
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类型
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Types
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decltype specifier (C++11)
规范
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Specifiers
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CV符
存储时间说明符
constexpr说明 (C++11)
汽车符 (C++11)
alignas说明 (C++11)
初始化
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Initialization
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Literals
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布尔文字
nullptr (C++11)
用户定义的 (C++11)
表达式
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Expressions
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另一种表示形式
实用工具
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Utilities
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类型
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Types
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typedef declaration
声明类型别名 (C++11)
属性 (C++11)
施放
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Casts
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隐式转换
const_cast conversion
static_cast conversion
dynamic_cast conversion
reinterpret_cast conversion
C-风格和功能转换
内存分配
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Memory allocation
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Classes
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类特定的功能特性
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Class-specific function properties
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虚函数
覆盖说明 (C++11)
最后说明 (C++11)
明确的 (C++11)
静态的
特殊的成员函数
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Special member functions
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模板
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Templates
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类模板
函数模板
模板特化
参数包 (C++11)
杂项
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Miscellaneous
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内联汇编
 
注释充当一系列代码间文档。当插入到程序中时,它们有能效地被编译器忽略,他们被用来作为阅读源代码的人的笔记,仅供。虽然具体的文件是不属于C + +标准,存在几个实用程序,不同的文件格式解析的意见.
Original:
Comments serve as a sort of in-code documentation. When inserted into a program, they are effectively ignored by the compiler; they are solely intended to be used as notes by the humans that read source code. Although specific documentation is not part of the C++ standard, several utilities exist that parse comments with different documentation formats.
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目录

[编辑] 语法

/* comment */ (1)
// comment\n (2)

1) 通常被称为“C风格”或“多行”注释。

2) 通常被称为“C++风格”或“单行”注释。

[编辑] C风格

C风格的注释通常用来注释大块文本,但是,他们可以用来注释单行文本。要插入一个C风格的注释,简单地用/**/环绕文字,这会使注释的内容被编译器忽略。虽然这不属于C++标准,但是/***/通常被用来表示文档块,这是合法的,因为第二个星号将仅被视为注释的一部分。C风格的注释不能嵌套。

C风格注释往往在C和C++混合环境中优先选择,因为它们是唯一可以在C标准(在C99之前)中使用的形式。

[编辑] C++风格

C风格的注释通常用于单行注释,但是,可以将多个C​​++风格注释放在一起,组成多行注释。C++风格注释告诉编译器忽略//和新行之间的所有内容,这使得它们非常有用。

[编辑] 示例

/* C-style comments can contain
multiple lines */
/* or just one */
 
// C++-style comments can comment one line
 
// or, they can
// be strung together
 
int main()
{
  // The below code won't be run
  // return 1;
 
  // The below code will be run
  return 0;
}