C++作业4.22

#include<iostream>#include<iomanip>#include<cmath>using namespace std;class point{public:point(int a,int b){x=a;y=b;}void show(){cout<<"横坐标："<<x<<"   ";cout<<"纵坐标："<<y<<endl;}friend void dist();int x;int y;};void dist(point p1,point p2){cout<<"两点间的距离为："<<sqrt((p1.x-p2.x)*(p1.x-p2.x)+(p1.y-p2.y)*(p1.y-p2.y))<<endl;}int main(){cout<<"点1的";point q1(0,0);q1.show();cout<<"点2的";point q2(3,4);q2.show();dist(q1,q2);system("pause");return 0;}

运行结果：