第六周项目四

来源：互联网发布：网络编码器编辑：程序博客网时间：2024/04/29 00:18
#include <iostream>#include<cmath>using namespace std;class CPoint{private:    double x;  // 横坐标    double y;  // 纵坐标 public:    CPoint(double xx=0,double yy=0):x(xx),y(yy){}    double distanc(CPoint &c);    friend double distan(CPoint &c1,CPoint &c2);    double getx()    {        return x;    }    double gety()    {        return y;    }};double dist(CPoint &c1,CPoint &c2){    return sqrt((c1.getx()-c2.getx())*(c1.getx()-c2.getx())+(c1.gety()-c2.gety())*(c1.gety()-c2.gety()));}double distan(CPoint &c1,CPoint &c2){    return sqrt((c1.x-c2.x)*(c1.x-c2.x)+(c1.y-c2.y)*(c1.y-c2.y));}double CPoint::distanc(CPoint &c){    return sqrt((this->x-c.getx())*(this->x-c.getx())+(this->y-c.gety())*(this->y-c.gety()));}int main(){    double x1,y1,x2,y2;    cout<<"请输入第一个点的坐标"<<endl;    cin>>x1>>y1;    CPoint c1(x1,y1);    cout<<"请输入第二个点的坐标"<<endl;    cin>>x2>>y2;    CPoint c2(x2,y2);    cout<<"友元求距离;"<<distan(c1,c2)<<endl;    cout<<"一般函数求距离:"<<dist(c1,c2)<<endl;    cout<<"成员函数求距离:"<<c1.distanc(c2)<<endl;    return 0;}
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