c#接口使用示例分享

interface 接口名
{
    方法声明;
}

class Program
{
    static void Main(string[] args)
    {
        //提供三个类，完成工资的计算
        List<ICalu> list = new List<ICalu>();
        list.Add(new Boss());
        list.Add(new Clert());
        list.Add(new Clert());
        list.Add(new Customer());
        foreach (ICalu emp in list)
        {
            emp.Calu(); //多态
        }
    }
}

class Boss : ICalu
{
    public  void Calu()
    {
        Console.WriteLine("计算老板工资");
    }
}
class Customer : ICalu
{
    public  void Calu()
    {
      Console.WriteLine("计算客户工资");
    }
}
class Clert : ICalu
{
    public  void Calu()
    {
        Console.WriteLine("计算职员工资");
    }
}
interface ICalu
{
    void Calu();
}

using System;
using System.Collections.Generic;
using System.Linq; using System.Text;
namespace ConsoleApplication1 {

    class Program     {    
    static void Main(string[] args)         {   
         List<IShow> list = new List<IShow>();     
       list.Add(new Map());    
        list.Add(new Voice());  
          list.Add(new Video());   
         list.Add(new ThreeD());
            foreach(IShow ishow in list)             {     
           ishow.Show();             }  
      } 
   } 
    interface IShow     {   
     void Show();     }  
  public class Map:IShow     {   
     public void Show()     
   {      
      Console.WriteLine("显示图片");         }   
} 
   public class Voice : IShow     {   
     public void Show()         {  
          Console.WriteLine("播放声音");         }
    }  
  public class Video : IShow     {  
      public void Show()  
      {        
    Console.WriteLine("显示视频");         } 
   }     public class ThreeD : IShow     { 
       public void Show()         {   
         Console.WriteLine("3D交互");         }   
}
}