C#创建自定义泛型结构和类

 1 #region Generic structuer
 2     public struct Point<T>
 3     {
 4         //Generic state date.
 5         private T xPos;
 6         private T yPos;
 7         //Generic constructor.
 8         public Point(T xVal, T yVal)
 9         {
10             xPos = xVal;
11             yPos = yVal;
12         }
13         //Generic properties
14         public T X
15         {
16             get { return xPos; }
17             set { xPos = value; }
18         }
19         public T Y
20         {
21             get { return yPos; }
22             set { yPos = value; }
23         }
24 
25         public override string ToString()
26         {
27             return string.Format("[{0} , {1}]",xPos,yPos);
28         }
29         //Reset fields to the default value of the type parameter
30         public void ResetPoint()
31         {
32             xPos = default(T);
33             yPos = default(T);
34         }
35     }
36     #endregion
37 
38     class Program
39     {
40         static void Main(string[] args)
41         {
42             Point<int> p = new Point<int>(20, 20);
43             Console.WriteLine("p.ToString()={0}", p.ToString());
44             p.ResetPoint();
45             Console.WriteLine("p.ToString()={0}", p.ToString());
46             Console.WriteLine("--------------------");
47 
48             Point<double> p2 = new Point<double>(2.34, 5.31);
49             Console.WriteLine("p2.ToString() = {0}", p2.ToString());
50             p2.ResetPoint();
51             Console.WriteLine("p2.ToString() = {0}", p2.ToString());
52 
53             Console.ReadLine();
54         }
55     }
注：引用自《Por C# 2010 and the .NET 4 Platform》