test10.txt

思路很清晰的c++课件。例子很简明

class Point{
protected:
   int x,y;
public:
   Point(int a,int b){ x=a;y=b; }
   int GetX(){ return x; }
   int GetY(){ return y; }
};
class Line{
private:
   Point p1;
   Point p2;
public:
   Line(int px1,int py1,int px2,int py2)
   {}
   int ShowLinw()
   {
      cout<<'('<<p1.GetX()<<','<<p1.GetY()<<")---("<<p2.GetX()<<','<<p2.GetY()<<")\n";
   }
};