static void Main(string[] args)
{
CPoint p1 = new CPoint(3, 3);
CPoint p2 = new CPoint(6, 6);
CPoint p3 = new CPoint(4, 6);
CPoint p4 = new CPoint(4, 9);
Cline L = new Cline();
int line1 = (int)L.GetLine(p1, p2);
int line2 = (int)L.GetLine(p3, p4);
CRect a = new CRect();
int area = a.GetArea(line1, line2);
int zhouchang = a.GetZhouchang(line1, line2);
Console.WriteLine("p1和p2,p3和p4组成的线段L1和L2分别是{0}和{1}\n", line1, line2);
Console.WriteLine("用L1和L2组成的矩形的面积和周长分别是{0}和{1}\n", area, zhouchang);
Console.ReadKey();
}
