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WangShuXian6 avatar WangShuXian6 commented on July 20, 2024
C++

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WangShuXian6 avatar WangShuXian6 commented on July 20, 2024

C++基础

C++是一种编译型语言。为了让程序运行,首先要用编译器处理源代码文本,生成目标文件,然后再用连接器将目标文件组合成可执行程序。一个C++程序通常包含多个源代码文件,通常简称为源文件(source file)。

05794

当谈论C++程序的可移植性时,通常是指源代码的可移植性,即源代码可以在不同系统上成功编译并运行。

每个C++实现都提供标准库组件,它们其实也是非常普通的C++代码。换句话说,C++标准库可以用C++语言本身实现(仅在实现线程上下文切换这样的功能时才使用少量机器代码)。这意味着C++在面对大多数高要求的系统编程任务时既有丰富的表达力,同时也足够高效。

C++是一种静态类型语言,这意味着任何实体(如对象、值、名称和表达式)在使用时都必须已被编译器了解。对象的类型决定了能在该对象上执行的操作。

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