proj9_01.cpp

C++程序设计教程的全部源代码 包含与教程同步的PPT 方便学习

#include <iostream.h> 
class sample
{
private:
	int counter;
public:
	sample()
	{
		counter = 0;
	}
	void operator ++()     //定义前缀运算符
	{
		++ counter;
	}
	void operator ++(int)  //定义后缀运算符
	{
		++ counter;
	}
	void display()
	{
		cout << counter << endl;
	}
};
void main()
{
	sample obj1;
	obj1.display();
	++obj1;    //前缀运算符
	obj1.display();
	obj1++;   //后缀运算符
	obj1.display();
}