1 #include <iostream>
2 #include <string>
3 using namespace std;
4
5 //访问者模式：核心叫做双重分发：两个多态：accept，visit
6
7 class XiaoMi;
8 class HuaWei;
9 class Oppo;
10 class CellPhoneVisitor {
11 public:
12 virtual void visit(XiaoMi* p) = 0;
13 virtual void visit(HuaWei* p) = 0;
14 virtual void visit(Oppo* p) = 0;
15 protected:
16 CellPhoneVisitor(){}
17 };
18
19
20 class CellPhone {
21 public:
22 virtual void dial() = 0;
23 virtual void sendMsg() = 0;
24 virtual void hang() = 0;
25 virtual void recvMsg() = 0;
26 virtual void accept(CellPhoneVisitor* p) = 0;
27 //Solaris系统-->
28 //Win7/win10
29 //Mac
30 protected:
31 CellPhone(){}
32 };
33
34 class XiaoMi :public CellPhone {
35 public:
36 void dial() { cout << "小米" << "在拨号" << endl; }
37 void sendMsg() { cout << "小米" << "在发短信" << endl; }
38 void hang() { cout << "小米" << "在关断电话" << endl; }
39 void recvMsg() { cout << "小米" << "在收短信" << endl; }
40 void accept(CellPhoneVisitor* p) {
41 p->visit(this);
42 }
43 };
44
45 class HuaWei :public CellPhone {
46 public:
47 void dial() { cout << "HuaWei" << "在拨号" << endl; }
48 void sendMsg() { cout << "HuaWei" << "在发短信" << endl; }
49 void hang() { cout << "HuaWei" << "在关断电话" << endl; }
50 void recvMsg() { cout << "HuaWei" << "在收短信" << endl; }
51 void accept(CellPhoneVisitor* p) {
52 p->visit(this);
53 }
54 };
55
56 class Oppo :public CellPhone {
57 public:
58 void dial() { cout << "Oppo" << "在拨号" << endl; }
59 void sendMsg() { cout << "Oppo" << "在发短信" << endl; }
60 void hang() { cout << "Oppo" << "在关断电话" << endl; }
61 void recvMsg() { cout << "Oppo" << "在收短信" << endl; }
62 void accept(CellPhoneVisitor* p) {
63 p->visit(this);
64 }
65 };
66
67 class SolarisConfigure : public CellPhoneVisitor {
68 public:
69 void visit(XiaoMi *p) {
70 p->dial();
71 p->hang();
72 p->sendMsg();
73 p->recvMsg();
74 }
75
76 void visit(HuaWei *p) {
77 p->dial();
78 p->hang();
79 p->sendMsg();
80 p->recvMsg();
81 }
82 void visit(Oppo *p) {
83 p->dial();
84 p->hang();
85 p->sendMsg();
86 p->recvMsg();
87 }
88 };
89
90 int main(void) {
91 CellPhoneVisitor* pVisitor = new SolarisConfigure;
92 XiaoMi* pXiaoMi = new XiaoMi;
93 HuaWei* pHuaWei = new HuaWei;
94 Oppo* pOppo = new Oppo;
95 cout << "将Solairs环境配置给XiaoMi" << endl;
96 pXiaoMi->accept(pVisitor);
97 cout << "将Solairs环境配置给HuaWei" << endl;
98 pHuaWei->accept(pVisitor);
99 cout << "将Solairs环境配置给Oppo" << endl;
100 pOppo->accept(pVisitor);
101 system("pause");
102 return 0;
103 }
