shiti1_5_1.cpp

为初学者提供的最佳的C++程序设计源程序库

#include<iostream.h>
struct Point
{
	float x;
	float y;
};
class Line
{
public:
	Line(float m,float n)
	{
		a=m;
		b=n;
	}
	void Print()
	{
		cout<<"y="<<a<<"*x+"<<b<<endl;
	}
	friend Point SetPoint(Line& p,Line& q);
private:
	float a,b;
};
Point SetPoint(Line& p,Line& q)
{
	Point Dian;
	Dian.x=(q.b-p.b)/(p.a-q.a);
	Dian.y=(p.a*q.b-q.a*p.b)/(p.a-q.a);
	return Dian;
}