模板模式

 1 #include <iostream>
 2 #include <string>
 3 using namespace std;
 4 
 5 class TestPaper
 6 {
 7 public:
 8     void question1()
 9     {
10         cout << "1+1=" << answer1() << endl;
11     }
12     void question2()
13     {
14         cout << "1*1=" << answer2() << endl;
15     }
16     virtual string answer1()
17     {
18         return "";
19     }
20     virtual string answer2()
21     {
22         return "";
23     }
24     virtual ~TestPaper()
25     {
26     }
27 };
28 
29 class TestPaperA : public TestPaper
30 {
31 public:
32     string answer1()
33     {
34         return "2";
35     }
36     virtual string answer2()
37     {
38         return "1";
39     }
40 };
41 
42 class TestPaperB : public TestPaper
43 {
44 public:
45     string answer1()
46     {
47         return "3";
48     }
49     virtual string answer2()
50     {
51         return "4";
52     }
53 };
54 
55 
56 int main()
57 {
58     cout << "A的试卷:" << endl;
59     TestPaper *s1 = new TestPaperA();
60     s1->question1();
61     s1->question2();
62     delete s1;
63 
64     cout << endl;
65     cout << "B的试卷:" << endl;
66     TestPaper *s2 = new TestPaperB();
67     s2->question1();
68     s2->question2();
69 
70     return 0;
71 }

 1 #include<iostream>
 2 #include <vector>
 3 #include <string>
 4 using namespace std;
 5 
 6 class AbstractClass
 7 {
 8 public:
 9     void Show()
10     {
11         cout << "我是" << GetName() << endl;
12     }
13 protected:
14     virtual string GetName() = 0;
15 };
16 
17 class Naruto : public AbstractClass
18 {
19 protected:
20     virtual string GetName()
21     {
22         return "火影史上最帅的六代目---一鸣惊人naruto";
23     }
24 };
25 
26 class OnePice : public AbstractClass
27 {
28 protected:
29     virtual string GetName()
30     {
31         return "我是无恶不做的大海贼---路飞";
32     }
33 };
34 
35 //客户端
36 int main()
37 {
38     Naruto* man = new Naruto();
39     man->Show();
40 
41     OnePice* man2 = new OnePice();
42     man2->Show();
43 
44     return 0;
45 }