coutove.cpp

来自「c语言教程源码」· C++ 代码 · 共 32 行

//这个程序在本书所带软盘中，文件名为COUTOVE.CPP
//这个程序是使用输出重载的例子。

#include <iostream.h>

class MyClass {
	friend ostream& operator << (ostream& output, MyClass objt);
	public :
		MyClass( int num1, int num2 )
		{
			n1 = num1; 
			n2 = num2; 
		}
	private:
		int n1, n2;
};

ostream& operator << (ostream& output, MyClass objt)
{
	output << " n1 = " << objt.n1 << "  n2 = " << objt.n2 << endl; 
}

void main(void)
{
	MyClass obj1(10, 20), obj2(40, 50);
	cout << obj1 << obj2 << endl;
}

/*这个程序运行后将输出下列结果：
 n1 = 10  n2 = 20
 n1 = 40  n2 = 50
*/