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#include<iostream>
#include<math.h>
using namespace std;
class Poing
{private:
float x,y;//µãµÄ×ø±ê
public:
Point(float xx,float yy)
{cout<<"point¹¹Ô캯Êý"<<endl;
x=xx;y=yy;
}
Point(Point &p)
{x=p.x;y=p.y;
cout<<"Point¿½±´¹¹Ô캯Êý"<<endl;
}
float GetX(void){return x;}
float GetY(void){return y;}
};
class Distance
{
private:
Point p1,p2;
double dist;
public:
Distance(Point a,Point b);
double GetDis(void){return dist;};
}
Distance::Distance(Point a,Point b):p1(a),p2(b)
{cout<<"Distance¹¹Ô캯Êý"<<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;
}

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#include<iostream>
#include<math.h>
using namespace std;
class Point
{
private:
float x,y;//µãµÄ×ø±ê
public:
Point(float xx,float yy)
{
cout<<"point¹¹Ô캯Êý"<<endl;
x=xx;y=yy;
}
Point(const Point &p);

float GetX(void){return x;}
float GetY(void){return y;}
};
Point::Point(const Point &p)
{x=p.x;y=p.y;
cout<<"Point¿½±´¹¹Ô캯Êý"<<endl;
}
class Distance
{
private:
Point p1,p2;
double dist;
public:
Distance(Point a,Point b);
double GetDis(void){return dist;};
};
Distance::Distance(Point a,Point b):p1(a),p2(b)
{
cout<<"Distance¹¹Ô캯Êý"<<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;
}

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#include<iostream>
#include<math.h>
using namespace std;
class Poing
{private:
float x,y;//µãµÄ×ø±ê
public:
Point(float xx,float yy)
{cout<<"point¹¹Ô캯Êý"<<endl;
x=xx;y=yy;
}
Point(Point &p)
{x=p.x;y=p.y;
cout<<"Point¿½±´¹¹Ô캯Êý"<<endl; //¿½±´¹¹Ô콨ÒéÄãдÔÚÍâÃæ...
}
float GetX(void){return x;}
float GetY(void){return y;}
};
class Distance
{
private:
Point p1,p2;
double dist;
public:
Distance(Point a,Point b);
double GetDis(void){return dist;};
}; //ÉÙÁ˸ö·ÖºÅ..
Distance::Distance(Point a,Point b):p1(a),p2(b)
{cout<<"Distance¹¹Ô캯Êý"<<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;
}

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LIBCD.lib(wincrt0.obj) : error LNK2001: unresolved external symbol _WinMain@16
Debug/111.exe : fatal error LNK1120: 1 unresolved externals
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111.exe - 1 error(s), 0 warning(s)