1 using System;
 2 using System.Collections.Generic;
 3 using System.Text;
 4 
 5 namespace Facade
 6 {
 7     class Program
 8     {
 9         static void Main(string[] args)
10         {
11             Facade facade = new Facade();
12             facade.MethodA();          //由于Facade的作用，客户端可以根本不知道SubSystemOne,SubSystemTwo等。
13             Console.ReadLine();
14         }
15     }
16     class Facade
17     {
18         SubSystemOne one;
19         SubSystemTwo two;
20         SubSystemThree three;
21         public Facade()
22         {
23             one = new SubSystemOne();
24             two = new SubSystemTwo();
25             three = new SubSystemThree();
26         }
27         public void MethodA()
28         {
29             Console.WriteLine("方法组A()----");
30             one.MethodOne();
31             two.MethodTwo();
32             three.MethodThree();
33         }
34     }
35     class SubSystemOne
36     {
37         public void MethodOne()
38         {
39             Console.WriteLine("子系统方法一");
40         }
41     }
42     class SubSystemTwo
43     {
44         public void MethodTwo()
45         {
46             Console.WriteLine("子系统方法二");
47         }
48     }
49     class SubSystemThree
50     {
51         public void MethodThree()
52         {
53             Console.WriteLine("子系统方法三");
54         }
55     }
56 }