装饰者模式的魅力

  1 using System;
  2
  3 namespace ConsoleApplication2
  4 {
  5     class Program
  6     {
  7         static void Main(string[] args)
  8         {
  9             //先造一部手机
 10             SJ sj = new SjLoad();
 11             //再给手机贴膜
 12             SJ sjm = new SJM(sj);
 13             Console.WriteLine(sjm.Getsj());
 14             //加了挂饰的手机
 15             SJ gs = new GS(sj);
 16             Console.WriteLine(gs.Getsj());
 17             //贴了膜又加挂饰手机
 18             SJ gsm = new GS(sjm);
 19             Console.WriteLine(gsm.Getsj());
 20
 21             //造人
 22             SJ ren = new Ren();
 23             //给枪
 24             SJ sq = new SQ(ren);
 25             //给容貌
 26             SJ rm = new RM(sq);
 27             Console.WriteLine(rm.Getsj());
 28             Console.Read();
 29         }
 30     }
 31
 32     //建造厂
 33     public abstract class SJ
 34     {
 35         //建造功能
 36         public abstract string Getsj();
 37     }
 38
 39     //先造一部手机
 40     public class SjLoad:SJ{
 41         public override string Getsj()
 42         {
 43             return "手机";
 44         }
 45     }
 46
 47     //给建造厂配备装饰功能
 48     public abstract class ZS:SJ
 49     {
 50         private SJ sj;   //准备装手机的容器
 51         public ZS(SJ s) //拿一个手机过来
 52         {
 53             this.sj = s;    //把手机装进容器
 54         }
 55
 56         //经过装饰的手机
 57         public override string Getsj()
 58         {
 59             return sj.Getsj();
 60         }
 61     }
 62
 63     //给手机贴膜
 64     public class SJM : ZS
 65     {
 66         public SJM(SJ sj)   //拿过来一个手机
 67             :base(sj)
 68         {
 69         }
 70         //给手机贴膜
 71         public override string Getsj()
 72         {
 73             return "贴了膜的"+base.Getsj();
 74         }
 75     }
 76
 77     //加挂饰
 78     public class GS : ZS
 79     {
 80         public GS(SJ sj):base(sj) { }
 81         public override string Getsj()
 82         {
 83             return "+挂饰"+base.Getsj();
 84         }
 85     }
 86
 87     //造个人
 88     public class Ren : SJ
 89     {
 90         public override string Getsj()
 91         {
 92             return "人";
 93         }
 94     }
 95
 96     //给人配一把手枪
 97     public class SQ : ZS
 98     {
 99         public SQ(SJ s) : base(s) { }   //把人抓过来
100         private string dsq = "拿着手枪的";
101         public override string Getsj()  //配手枪
102         {
103             return dsq+ base.Getsj();
104         }
105     }
106
107     //给人容貌
108     public class RM : ZS
109     {
110         public RM(SJ s) : base(s) { }
111
112         private string rmao = "英俊的";
113         public override string Getsj()
114         {
115             return rmao+ base.Getsj();
116         }
117     }
118 }