using System;using System.Collections.Generic;using System.Linq;using System.Text;namespace CommandSchema{class Program{static void Main(string[] args){Barbecue boy=new Barbecue();Command bakeMuttonCommand=new BakeMuttonCommand(boy);Command bakeChickenWingCommand=new BakeChickenWingCommand(boy);Waiter gril=new Waiter();gril.SetOrder(bakeMuttonCommand);gril.SetOrder(bakeChickenWingCommand);gril.Notify();Console.ReadLine();}}/// 
/// 烤羊肉串的人/// 
class Barbecue{public void BakeMutton(){Console.WriteLine("开始烤羊肉串");}public void BakeChickenWing(){Console.WriteLine("开始烤鸡翅膀");}}/// 
/// 抽象命令/// 
abstract class Command{protected Barbecue receiver;protected Command(Barbecue receiver){this.receiver = receiver;}abstract public void ExecuteCommand();}class BakeMuttonCommand:Command{public BakeMuttonCommand(Barbecue receiver) : base(receiver){}public override void ExecuteCommand(){receiver.BakeMutton();}}class BakeChickenWingCommand:Command{public BakeChickenWingCommand(Barbecue receiver) : base(receiver){}public override void ExecuteCommand(){receiver.BakeChickenWing();}}/// 
/// invoker/// 
class Waiter{private IList orders=new List();public void SetOrder(Command command){orders.Add(command);Console.WriteLine("增加订单：" + command + " 时间：" + DateTime.Now);}public void CancelOrder(Command command){orders.Remove(command);Console.WriteLine("取消订单：" + command + " 时间：" + DateTime.Now);}public void Notify(){foreach (Command command in orders){command.ExecuteCommand();}}}}