C++常用头文件及库函数

2024-07-06 17:58| 来源: 网络整理| 查看: 265

【前言】

这里将介绍普通c++用到的头文件及库函数

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【普通篇】【万能头文件】

首先介绍一下万能头文件

#include

这个头文件大概是这样的：

// C++ includes used for precompiling -*- C++ -*- // Copyright (C) 2003-2020 Free Software Foundation, Inc. // // This file is part of the GNU ISO C++ Library. This library is free // software; you can redistribute it and/or modify it under the // terms of the GNU General Public License as published by the // Free Software Foundation; either version 3, or (at your option) // any later version. // This library is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // Under Section 7 of GPL version 3, you are granted additional // permissions described in the GCC Runtime Library Exception, version // 3.1, as published by the Free Software Foundation. // You should have received a copy of the GNU General Public License and // a copy of the GCC Runtime Library Exception along with this program; // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see // . /** @file stdc++.h * This is an implementation file for a precompiled header. */ // 17.4.1.2 Headers // C #ifndef _GLIBCXX_NO_ASSERT #include #endif #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #if __cplusplus >= 201103L #include #include #include #include #include #include #include #include #endif // C++ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #if __cplusplus >= 201103L #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #endif #if __cplusplus >= 201402L #include #endif #if __cplusplus >= 201703L #include #include // #include #include #include #include #include #include #endif #if __cplusplus > 201703L #include #include #include #include #include #include #include // #include #include #endif 【其他常见头文件】【iostream】 #include

这是标准的输入输出流的头文件

常用：

cin>> //输入变量

cout

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