C++ //多态案例三 ---电脑组装
2024-09-03 01:44:32
1 //多态案例三 ---电脑组装
2
3 #include <iostream>
4 #include <string>
5 using namespace std;
6
7 //抽象不同零件类
8 //抽象CPU类
9
10 class CPU
11 {
12 public:
13 //抽象的计算函数
14 virtual void calculate() = 0;
15
16
17
18
19
20 };
21 //抽象显卡类
22 class VideoCard
23 {
24 public:
25 //抽象的显示函数
26 virtual void display() = 0;
27
28
29
30
31
32 };
33
34 //抽象内存条类
35 class Memory
36 {
37 public:
38 //抽象的存储函数
39 virtual void storage() = 0;
40
41
42
43
44
45 };
46
47
48 //电脑类
49 class Computer
50 {
51 public:
52 Computer(CPU* cpu, VideoCard* vc, Memory* mem)
53 {
54 m_cpu = cpu;
55 m_mem = mem;
56 m_vc = vc;
57 }
58
59 //提供工作的函数
60 void work()
61 {
62
63 //让零件工作起来，调用接口
64 m_cpu->calculate();
65
66 m_vc->display();
67
68 m_mem->storage();
69 }
70
71 //提供析构函数 释放3个电脑零件
72 ~Computer()
73 {
74 //释放CPU零件
75 if (m_cpu != NULL)
76 {
77 delete m_cpu;
78 m_cpu = NULL;
79 }
80 //释放显卡零件
81 if (m_vc != NULL)
82 {
83 delete m_vc;
84 m_vc = NULL;
85 }
86 //释放内存零件
87 if (m_mem != NULL)
88 {
89 delete m_mem;
90 m_mem = NULL;
91 }
92
93 }
94
95 private:
96
97 CPU* m_cpu; //CPU的零件指针
98 VideoCard* m_vc; //显卡的零件指针
99 Memory* m_mem; //内存条零件指针
100
101
102 };
103 //具体厂商
104 //Intel 厂商
105
106 class IntelCPU :public CPU
107 {
108 public:
109 virtual void calculate()
110 {
111 cout << "Intel的CPU开始计算了" << endl;
112 }
113 };
114
115 class IntelVideoCard :public VideoCard
116 {
117 public:
118 virtual void display()
119 {
120 cout << "Intel的显卡开始显示了" << endl;
121 }
122 };
123
124 class IntelMemory :public Memory
125 {
126 public:
127 virtual void storage()
128 {
129 cout << "Intel的内存条开始储存了" << endl;
130 }
131 };
132
133
134 //Lenovo厂商
135 class LenovoCPU :public CPU
136 {
137 public:
138 virtual void calculate()
139 {
140 cout << "Lenovo的CPU开始计算了" << endl;
141 }
142 };
143
144 class LenovoVideoCard :public VideoCard
145 {
146 public:
147 virtual void display()
148 {
149 cout << "Lenovo的显卡开始显示了" << endl;
150 }
151 };
152
153 class LenovoMemory :public Memory
154 {
155 public:
156 virtual void storage()
157 {
158 cout << "Lenovo的内存条开始储存了" << endl;
159 }
160 };
161
162 void test01()
163 {
164 //第一台电脑的零件
165 cout << "创建第一台电脑" << endl;
166 CPU* intelCpu = new IntelCPU;
167 VideoCard* intelCard = new IntelVideoCard;
168 Memory* intelMem = new IntelMemory;
169
170 //创建第一台电脑
171 Computer* computer1 = new Computer(intelCpu,intelCard,intelMem);
172 computer1->work();
173 delete computer1;
174
175 //delete intelCpu;
176 //delete intelCard;
177 //delete intelMem;
178
179 //第二台电脑的组装
180
181 //CPU* lenovoCpu = new LenovoCPU;
182 //VideoCard* lenovoCard = new LenovoVideoCard;
183 //Memory* lenovoMem = new LenovoMemory;
184
185
186 //Computer* computer2 = new Computer(lenovoCpu, lenovoCard, lenovoMem);
187 //computer2->work();
188 //delete computer2;
189 cout << "*************************************"<<endl;
190 cout << "创建第二台电脑" << endl;
191
192 //第二台电脑的组装
193 Computer* computer2 = new Computer(new LenovoCPU, new LenovoVideoCard, new LenovoMemory);
194 computer2->work();
195 delete computer2;
196
197
198 cout << "*************************************" << endl;
199 cout << "创建第三台电脑" << endl;
200
201 //第二台电脑的组装
202 Computer* computer3 = new Computer(new LenovoCPU, new IntelVideoCard, new LenovoMemory);
203 computer3->work();
204 delete computer3;
205
206
207
208
209 }
210
211 int main()
212 {
213
214 test01();
215
216
217 system("pause");
218
219 return 0;
220
221 }
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