命令模式(Command)

作者：追风剑情发布于：2016-6-17 18:05 分类：设计模式

应用场景：将行为请求者与行为执行者解耦。

using System;
using System.Collections.Generic;
using System.Text;
 
namespace CommandTest
{
    class Program
    {
        static void Main(string[] args)
        {
            //实际开发中，还可以把各命令加入队列中，并支持撤销(Undo)操作和恢复(Redo)操作。
 
            Receiver receiver = new Receiver();
            ICommand cmd1 = new Command1(receiver);
            ICommand cmd2 = new Command2(receiver);
 
            cmd1.Execute();
            cmd2.Execute();
 
            Console.Read();
        }
    }
 
    public interface ICommand
    {
        void Execute();
    }
 
    public class Command1 : ICommand
    {
        private Receiver receiver;
 
        public Command1(Receiver receiver)
        {
            this.receiver = receiver;
        }
 
        public void Execute()
        {
            receiver.Show1();
        }
    }
 
    public class Command2 : ICommand
    {
        private Receiver receiver;
 
        public Command2(Receiver receiver)
        {
            this.receiver = receiver;
        }
 
        public void Execute()
        {
            receiver.Show2();
        }
    }
 
    //命令接收者
    public class Receiver
    {
        public void Show1()
        {
 
        }
 
        public void Show2()
        {
 
        }
    }
}