求高手，tell以下程序运行结果。。。
#include<iostream.h>#include<math.h>
class Point
{
public:
Point(int xx=0,int yy=0){X=xx;Y=yy;cout<<"point 构造函数被调用"<<endl;}
Point(Point &p);
int GetX(){return X;}
int GetY(){return Y;}
private:
int X,Y;
};
Point::Point(Point &p)
{
X=p.X;
Y=p.Y;
cout<<"X="<<X<<"Y="<<Y<<"Point 拷贝构造函数被调用"<<endl;
}
class Distance
{
public:
Distance(Point xp1,Point xp2);
double GetDis(){return dist;}
private:
Point p1,p2;
double dist;
};
Distance::Distance(Point xp1,Point xp2):p1(xp1),p2(xp2)
{
cout<<"Distance 构造函数被调用"<<endl;
double x=double(p1.GetX()-p2.GetX());
double y=double(p1.GetY()-p2.GetY());
dist=sqrt(x*x+y*y);
}
void main()
{
Point myp1(1,1),myp2(4,5);
Distance myd(myp1,myp2);
cout<<"The distance is:";
cout<<myd.GetDis()<<endl;
}
