C++ iostream

C++中的<iostream>是一个头文件，定义了标准输入/输出流对象。它包含了<iostream>之外，还自动包含了<ios>、<streambuf>、<istream>、<ostream>和<iosfwd>这些头文件。而cout是一个ostream类（iostream的派生类）的对象，可以理解为一种输出流对象。它实际上是在iostream中预定义的一个变量。至于C语言中的源文件名扩展名常用的有.cpp、.cxx、.cc、.c，而头文件的扩展名常用的有.hpp、.hxx、.h。所以可以看出，C++是C的超集，完全兼容C的语法特性和标准库，C++编译器完全可以正常编译C程序。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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- *1* [C++中头文件iostream介绍](https://blog.csdn.net/fengbingchun/article/details/63685373)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v92^chatsearchT0_1"}}] [.reference_item style="max-width: 50%"]
- *2* *3* [c++标准库iostream](https://blog.csdn.net/m0_60073820/article/details/121319269)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v92^chatsearchT0_1"}}] [.reference_item style="max-width: 50%"]
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