main.cpp

来自「易学c++源码」· C++ 代码 · 共 15 行

#include "iostream.h"
void main()
{
	int a=2;
	int &b=a;//给变量a起了个绰号叫b
	cout <<"a=" <<a <<endl;
	cout <<"b=" <<b <<endl;
	a++;
	cout <<"a=" <<a <<endl;
	cout <<"b=" <<b <<endl;
	b++;//对b的操作也就是对a的操作，所以b++就相当于a++
	cout <<"a=" <<a <<endl;
	cout <<"b=" <<b <<endl;
}