05_06.cpp

一些C++的课件和实验源代码

// 05_06.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include <iostream>
#include <conio.h>
using namespace std;

class point{
private:
	int x, y;
	void Print(){
		cout << "x = " << x << ", y = " << y << endl;
	}

public:
	point(){x = y = 0;}

	friend void setDefault(point pt);	// 友元函数
};

void setDefault(point pt)
{
	pt.x = pt.y = 10;	// 访问私有变量
	pt.Print();			// 访问私有函数
}

main()
{
	point pt;
	setDefault(pt);

	pt.setDefault(pt);

	getch();
	return 0;
}