C#创建自定义泛型结构和类

#region Generic structuer
    public struct Point<T>
    {
        //Generic state date.
        private T xPos;
        private T yPos;
        //Generic constructor.
        public Point(T xVal, T yVal)
        {
            xPos = xVal;
            yPos = yVal;
        }
        //Generic properties
        public T X
        {
            get { return xPos; }
            set { xPos = value; }
        }
        public T Y
        {
            get { return yPos; }
            set { yPos = value; }
        }

        public override string ToString()
        {
            return string.Format("[{0} , {1}]",xPos,yPos);
        }
        //Reset fields to the default value of the type parameter
        public void ResetPoint()
        {
            xPos = default(T);
            yPos = default(T);
        }
    }
    #endregion

    class Program
    {
        static void Main(string[] args)
        {
            Point<int> p = new Point<int>(20, 20);
            Console.WriteLine("p.ToString()={0}", p.ToString());
            p.ResetPoint();
            Console.WriteLine("p.ToString()={0}", p.ToString());
            Console.WriteLine("--------------------");

            Point<double> p2 = new Point<double>(2.34, 5.31);
            Console.WriteLine("p2.ToString() = {0}", p2.ToString());
            p2.ResetPoint();
            Console.WriteLine("p2.ToString() = {0}", p2.ToString());

            Console.ReadLine();
        }
    }

注：引用自 《Por C# 2010 and the .NET 4 Platform》