设计模式 - 装饰模式

 1 using System;
 2 using System.Collections.Generic;
 3 using System.Linq;
 4 using System.Text;
 5 
 6 namespace ConsoleApplication1
 7 {
 8     class Person
 9     {
10         private string name;
11 
12         public Person()
13         { }
14 
15         public Person(string name)
16         {
17             this.name = name;
18         }
19 
20         public virtual void Show()
21         {
22             Console.Write(" Decorated " + this.name);
23         }
24     }
25 
26     class Finery: Person
27     {
28         private Person person;
29 
30         public void SetDecoration(Person person)
31         {
32             this.person = person;
33         }
34 
35         public override void Show()
36         {
37             if(this.person != null)
38             {
39                 this.person.Show();
40             }
41         }
42     }
43 
44     class Sneaker: Finery
45     {
46         public override void Show()
47         {
48             Console.Write(" Sneaker ");
49 
50             base.Show();
51         }
52     }
53 
54     class Jeans : Finery
55     {
56         public override void Show()
57         {
58             Console.Write(" Jeans ");
59 
60             base.Show();
61         }
62     }
63 
64     class WhiteTshirt : Finery
65     {
66         public override void Show()
67         {
68             Console.Write(" White Tshirt ");
69 
70             base.Show();
71         }
72     }
73 
74     class Program
75     {
76         static void Main(string[] args)
77         {
78             Person jim = new Person("Jim");
79             Sneaker sneaker = new Sneaker();
80             Jeans jeans = new Jeans();
81             WhiteTshirt whiteTshirt = new WhiteTshirt();
82 
83             sneaker.SetDecoration(jim);
84             jeans.SetDecoration(sneaker);
85             whiteTshirt.SetDecoration(jeans);
86 
87             whiteTshirt.Show();
88 
89             Console.ReadLine();
90         }
91     }
92 }