基础知识

一、接口：

 1     //定义接口
 2     public interface IBonuss
 3     {
 4         double Calculate();
 5 
 6         string name
 7         {
 8             get;
 9             set;
10         }
11     }
12     
13     //实现接口
14     public class ChineseBonuss : IBonuss
15     {
16         public double Calculate()
17         {
18             return 111;
19         }
20 
21         string strName = "";
22         public string name
23         {
24             get
25             {
26                 return strName;
27             }
28             set
29             {
30                 value = strName;
31             }
32         }
33     }
34     //调用
35     public static void Main(string[] args) 
36     {
37       IBonuss i = new ChineseBonuss();
38       double dd = i.Calculate();
39       Console.WriteLine(dd.ToString());
40       Console.ReadLine();
41       return;
42     }