public MyPoint Cong(MyPoint point1, MyPoint point2)
{
return(new MyPoint(point1.x + point2.x, point1.y + point2.y));
}
public MyPoint Tru(MyPoint point1, MyPoint point2)
{
return(new MyPoint(point1.x - point2.x, point1.y - point2.y));
}
public MyPoint(MyPoint mypoint)
{
this.x = mypoint.x;
this.y = mypoint.y;
}