1 public  interface IEventInterFace
 2     {
 3         string this[int index] { get; set; }//索引器
 4         List<string> MyList { get; set; } //属性
 5         string Name { get; set; }//属性
 6         event EventHandler MyEventHandler;//事件
 7         void Meth();//方法
 8     }
 9 
10     public class InterFaceTestClass:IEventInterFace
11     {
12         public string this[int index]//索引器实现
13         {
14             
15              get
16              {
17                 if(index>0&&index<=MyList.Count-1)
18                   return MyList.ToArray()[index];
19                 return "超出边界";
20              }
21              set
22              {
23                  MyList[index] = value;
24              }
25         }
26         public List<string> MyList { get; set; } //属性实现
27         public  string Name { get; set; }//属性实现
28         public void Meth()//方法实现
29         {
30             Console.WriteLine("Meth");
31         }
32         public event EventHandler MyEventHandler;//事件实现
33 
34         public void InvokeMyEventHandler()//调用事件的方法
35         {
36             MyEventHandler(null, null);
37         }
38     }
39 class Program
40     {
41         public static void MyMethed(object sender,EventArgs e)
42         {
43             Console.WriteLine("MyMethed");
44         }
45 
46         static void Main(string[] args)
47         {
48 
49             var myClass=new InterFaceTestClass();
50             myClass.MyList=new List<string>(){"a","b","c"};
51             var str= myClass[1];//索引器用法
52             Console.WriteLine(str);
53             
54             myClass[1] = "bb";
55             myClass.Meth();
56             myClass.MyEventHandler+=new EventHandler(MyMethed);//事件添加函数
57 
58             myClass.InvokeMyEventHandler();
59             
60            
61         }
62     }