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Point.ÀàµÄÉùÃ÷Ó붨Ò壺

#pragma once
#ifndef _POINT_H
#define _POINT_H

class Point
{
	public:
		void getXY();
		friend double distanceXY(Point &a,Point &b);

	public:
		Point(double x,double y);
		~Point(void);

	private:
		double x;
		double y;
};

#endif

#include "stdafx.h"
#include "Point.h"
#include
#include
using namespace std;

Point::Point(double x,double y)
{
	this->x=x;
	this->y=y;
}


Point::~Point(void)
{
}

void Point::getXY()
{
	cout<<"x: "<

²âÊÔÎļþTestProject.cpp£º


#include "stdafx.h"
#include "Point.h"
#include 
using namespace std;

int _tmain(int argc, _TCHAR* argv[])
{
	Point p1(3.0,4.0),p2(5,6);
	p1.getXY();
	p2.getXY();

	double dis=distanceXY(p1,p2);
	cout<<"distance is : "<

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ÀàAµÄÉùÃ÷Ó붨Ò壺
<†·Ÿ"http://www.Bkjia.com/kf/ware/vc/" target="_blank" class="keylink">vc3Ryb25nPjwvcD4KPHByZSBjbGFzcz0="brush:java;">#pragma once
class A
{
	public:
		void getXY();
		friend class B;

	public:
		A(double x,double y);
		~A(void);

	private:
		double x;
		double y;
};






#include "stdafx.h"
#include "A.h"
#include
#include
using namespace std;

A::A(double x,double y)
{
	this->x=x;
	this->y=y;
}


A::~A(void)
{
}

void A::getXY()
{
	cout<<"A x: "<

ÀàBµÄÉùÃ÷Ó붨Ò壺


#pragma once
#include "A.h"
class B
{

public:
	B(void);
	~B(void);

public:
	void setX(A &a);
	void setY(A &b);
};


#include "stdafx.h"
#include "B.h"


B::B(void)
{
}


B::~B(void)
{
}

void B::setX(A &a)
{
	a.x=0;
	a.getXY();
}

void B::setY(A &a)
{
	a.y=0;
	a.getXY();
}


²âÊÔÀàÈçÏ£º


#include "stdafx.h"
#include "A.h"
#include "B.h"
#include 
using namespace std;

int _tmain(int argc, _TCHAR* argv[])
{
	A a(5.0,5.0);
	B b;
	b.setX(a);
	b.setY(a);
	
	return 0;
}


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MÎļþÉùÃ÷Ó붨Ò壺

#pragma once
#ifndef _M_H
#define _M_H

#include "N.h"
class M
{
	public:
		void getXY();
		friend void N::print(M& m);

	public:
		M(double x,double y);
		~M(void);

	private:
		double x;
		double y;

	private:
		void getXY2();
};

#endif


#include "stdafx.h"
#include "M.h"
#include
#include
using namespace std;

M::M(double x,double y)
{
	this->x=x;
	this->y=y;
}


M::~M(void)
{
}

void M::getXY()
{
	cout<<"M getXY x: "<

NµÄÉùÃ÷Ó붨Ò壺





#pragma once
#ifndef _N_H
#define _N_H

class M;
class N
{

public:
	N(void);
	~N(void);

public:
	void print(M &m);
	void print2(M &m);
};

#endif






#include "stdafx.h"
#include "N.h"
#include "M.h"

N::N(void)
{
}


N::~N(void)
{
}

void N::print(M &m)
{
	m.getXY();
	m.getXY2();
}

void N::print2(M &m)
{
	//m.getXY();//--------ÕâÀïÈç¹û´ò¿ª×¢Êͻᱨ´í
	//m.getXY2();
}








²âÊÔÀࣺ

#include "stdafx.h"
#include "M.h"
#include "N.h"
#include 
using namespace std;

int _tmain(int argc, _TCHAR* argv[])
{
	M m(5.0,5.0);
	N n;
	n.print(m);
	n.print2(m);
	return 0;
}


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