/// <summary>
/// Entry Point of Application
/// </summary>
/// <param name="args"></param>
static void Main(string[] args)
{
string input; // declare variable input with string type
MyPoint p1 = new MyPoint(); //Create object p1
double z;
Console.WriteLine("求平面上一點到原點之距離的平方");
Console.WriteLine("請輸入點P1的X座標:");
input = Console.ReadLine(); //Read string from keyboad
p1.X = double.Parse(input); //Convert string into double and assign to the member,x, of p1
Console.WriteLine("請輸入點P1的y座標:");
input = Console.ReadLine();
p1.Y = double.Parse(input);
z = p1.DistanceToOrigin(); // call Method
Console.WriteLine("({0},{1})到原點之距離的平方為:{2}", p1.X, p1.Y, z);
MyPoint p2 = new MyPoint(); //Create object p2
Console.WriteLine("請輸入點P2的X座標:");
input = Console.ReadLine(); //Read string from keyboad
p2.X = double.Parse(input); //Convert string into double and assign to the member,x, of p2
Console.WriteLine("請輸入點P2的y座標:");
input = Console.ReadLine();
p2.Y = double.Parse(input);
z = p2.DistanceToOrigin(); // call Method
z = p1.DistanceTo(p2); // call Method
Console.WriteLine("({0},{1})與({2},{3})距離的平方為:{4}", p1.X, p1.Y, p2.X, p2.Y, z);
Console.Read();
}