1.stream对象 c++ I/O由stream完成,所谓stream就是一条数据流,字符序列在其中‘川流不息’。按照面向对象原则,stream是由摸个类定义出来的具有特定性质的对象。输出操作被解读为“数据流入stream” , 输入操作则是“数据流出stream”。另外有一些为标准I/O通道而定义的全局对象。 2.stream类别 class istream 用来定义input str
: #include <iostream.h> class Point { public: int x; int y; }; void main() { Point pt; pt.x=5; pt.y=5; cout<<pt.x<<endl<<pt.y<<endl; } 编译错误: fatal error C1083: 无法打开包括文件:"iostream.h": No such
#include From 《C++ Library reference 概览》, include come from ‘algorithm -> merge -> includes’. From geeksforgeeks, #include is a way of including a standard or user-defined file in the program and