代理模式
【1】什么是代理模式?
为其他对象提供一种代理,并以控制对这个对象的访问。
【2】代理模式代码示例:
示例代码:
1 #include <iostream>
2 #include <string>
3 using namespace std;
4
5 class SchoolGirl
6 {
7 public:
8 string name;
9 };
10
11 /*
12 * 接口
13 */
14 class IGiveGift
15 {
16 public:
17 virtual void giveDolls() = 0;
18 virtual void giveFlowers() = 0;
19 };
20
21 /*
22 * 委托类
23 */
24 class Pursuit : public IGiveGift
25 {
26 private:
27 SchoolGirl mm;
28
29 public:
30 Pursuit(SchoolGirl m)
31 {
32 mm = m;
33 }
34 void giveDolls()
35 {
36 cout << mm.name << " 送你娃娃" << endl;
37 }
38 void giveFlowers()
39 {
40 cout << mm.name << " 送你鲜花" << endl;
41 }
42 };
43
44 /*
45 * 代理类
46 */
47 class Proxy : public IGiveGift
48 {
49 private:
50 Pursuit gg;
51
52 public:
53 Proxy(SchoolGirl mm) : gg(mm)
54 {
55 }
56 void giveDolls()
57 {
58 gg.giveDolls();
59 }
60 void giveFlowers()
61 {
62 gg.giveFlowers();
63 }
64 };
65
66 /*
67 * 客户端
68 */
69 int main()
70 {
71 SchoolGirl lijiaojiao;
72 lijiaojiao.name = "李娇娇";
73 Pursuit zhuojiayi(lijiaojiao);
74 Proxy daili(lijiaojiao);
75
76 daili.giveDolls();
77 daili.giveFlowers();
78
79 return 0;
80 }
Good Good Study, Day Day Up.
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