1 #include <iostream>
 2 using namespace std;
 3
 4 class SubSystemA
 5 {
 6 public:
 7     void doThing()
 8     {
 9         cout << "SubSystemA run" << endl;
10     }
11 };
12
13 class SubSystemB
14 {
15 public:
16     void doThing()
17     {
18         cout << "SubSystemB run" << endl;
19     }
20 };
21
22 class SubSystemC
23 {
24 public:
25     void doThing()
26     {
27         cout << "SubSystemC run" << endl;
28     }
29 };
30
31
32 class Facade
33 {
34 public:
35     Facade()
36     {
37         sysA = new SubSystemA;
38         sysB = new SubSystemB;
39         sysC = new SubSystemC;
40     }
41     ~Facade()
42     {
43         delete sysA;
44         delete sysB;
45         delete sysC;
46     }
47 public:
48     void doThing()
49     {
50         sysA->doThing();
51         sysB->doThing();
52         sysC->doThing();
53     }
54 protected:
55 private:
56     SubSystemA *sysA;
57     SubSystemB *sysB;
58     SubSystemC *sysC;
59 };
60 //普通方法
61 void main1801()
62 {
63     SubSystemA *sysA = new SubSystemA;
64     SubSystemB *sysB = new SubSystemB;
65     SubSystemC *sysC = new SubSystemC;
66
67     sysA->doThing();
68     sysB->doThing();
69     sysC->doThing();
70     delete sysA;
71     delete sysB;
72     delete sysC;
73
74     return ;
75 }
76 //外观模式
77 void main1802()
78 {
79     Facade *f = new Facade;
80     f->doThing();
81     delete f;
82
83 }
84
85 void main()
86 {
87     //main1801();
88     main1802();
89     system("pause");
90 }