1 #include <iostream>
 2 using namespace std;
 3 
 4 class Gettableware{
 5 public:
 6     Gettableware(){}
 7     void doIt()
 8     {
 9         cout<<"拿餐具！"<<endl;
10     }
11 };
12 
13 class GetDrink{
14 public:
15     GetDrink(){}
16     void doIt()
17     {
18         cout<<"拿饮料！"<<endl;
19     }
20 };
21 
22 class GetTissue{
23 public:
24     GetTissue(){}
25     void doIt()
26     {
27         cout<<"拿纸巾！"<<endl;
28     }
29 };
30 
31 class Waiter{
32 public:
33     Waiter()
34     {
35         mpGettableware = new Gettableware;
36         mpGetDrink = new GetDrink;
37         mpGetTissue = new GetTissue;
38     }
39 
40     ~Waiter()
41     {
42         delete mpGetTissue;
43         delete mpGettableware;
44         delete mpGetDrink;
45     }
46     void mGettableware()
47     {
48         mpGettableware->doIt();
49     }
50     void mGetDrink()
51     {
52         mpGetDrink->doIt();
53     }
54     void mGetTissue()
55     {
56         mpGetTissue->doIt();
57     }
58 public:
59     Gettableware* mpGettableware;
60     GetDrink* mpGetDrink;
61     GetTissue* mpGetTissue;
62 };
63 
64 class Client{
65 public:
66     Client()
67     {
68         mWaiter = new Waiter;
69     }
70     ~Client()
71     {
72         delete mWaiter;
73     }
74     Waiter* mWaiter;
75 };
76 
77 void main()
78 {
79     Client client;
80     client.mWaiter->mGettableware();
81     client.mWaiter->mGetDrink();
82     client.mWaiter->mGetTissue();
83     return;
84 }