泛型方法、泛型接口、泛型署理、泛型类别测试

using System;using System.Collections.Generic;public delegate void DExchange<T>(ref T t1,ref T t2);public interface IExchange<T>{    void Swap(ref T t1,ref T t2);}public class MyClass<T,V>: IExchange<T>{    public void Swap(ref T t1,ref T t2)    {        T temp = t1;        t1 = t2;        t2 = temp;    }    public void SayHello<M>(V v1,M m1)    {        return;    }}public class RunMyApp{    public static void Main()    {        string xu = "Xu Minghui";        string liu = "Liu Jie";        MyClass<string,int> my = new MyClass<string,int>();        my.Swap(ref xu,ref liu);                IExchange<string> IE = my;        IE.Swap(ref xu, ref liu);                DExchange<string> de = my.Swap;        de(ref xu, ref liu);                Console.WriteLine(xu);        Console.ReadKey();    }}