接口，抽象类，继承，多态

 /// <summary>
 2     /// 数据统一接口规范
 3     /// </summary>
 4     interface ITest
 5     {
 6         /// <summary>
 7         /// 插入方法
 8         /// </summary>
 9         void Insert();
10     }
11     /// <summary>
12     /// 统一实体基类
13     /// 子类共同的操作逻辑
14     /// </summary>
15     abstract class TestBase : ITest
16     {
17 
18         #region ITest 成员
19 
20         public virtual void Insert()
21         {
22             Console.WriteLine("基类统一实现Insert方法");
23         }
24 
25         #endregion
26     }
27     interface ITestzzl : ITest { }
28     /// <summary>
29     /// Testzzl实体操作
30     /// </summary>
31     class Testzzl : TestBase, ITestzzl
32     {
33         /// <summary>
34         /// 子类也可以去复写它
35         /// </summary>
36         public override void Insert()
37         {
38             Console.WriteLine("子类实现Insert方法");
39         }
40     }
41 
42 class Program{
43  static void Main(string[] args)
44         {
45             ITestzzl iTestzzl = new Testzzl();
46 
47             iTestzzl.Insert();
48             Console.ReadKey();
49 }
50 }