1 多继承语法：
2
3 //助教类既继承于老师类，又继承于学生类
4 class Assistant:public Teacher,public Student
5 {
6 };
7
8 当遇到的问题无法只用一个“是一个”关系来描述的时候，就是多继承出场的时候。例即是学生，又是人，还是助教。
9
10 #include <iostream>
11 #include <string>
12
13 using namespace std;
14
15 #include <string>
16 //人类
17 class Person
18 {
19 public:
20 Person(string theName);//构造函数，theName为类的输入参数
21 void introduce();
22 protected:
23 string name;
24 };
25 Person::Person(string theName)//构造函数实现
26 {
27 name = theName;
28 }
29 void Person::introduce()//introduce()函数实现
30 {
31 cout << "大家好，我是" << name << "。\n\n";
32 }
33
34 //老师类继承于人类
35 class Teacher:public Person
36 {
37 public:
38 Teacher(string theName,string theClass);
39
40 void teach();//教书
41 void introduce();
42 protected:
43 string classes;
44 };
45 Teacher::Teacher(string theName,string theClass):Person(theName)//老师的名字继承于人类中的名字
46 {
47 classes = theClass;
48 }
49 void Teacher::teach()
50 {
51 cout<< name << " 教 "<< classes << "。\n\n";
52 }
53 void Teacher::introduce()
54 {
55 cout<<"大家好，我是 "<< name <<" ，我教 "<< classes << "。\n\n";
56 }
57
58 //学生类继承于人类
59 class Student:public Person
60 {
61 public:
62 Student(string theName,string theClass);
63
64 void attendClass();//要上课
65 void introduce();
66 protected:
67 string classes;
68 };
69 Student::Student(string theName,string theClass):Person(theName)//学生名字继承于人类中的名字
70 {
71 classes = theClass;
72 }
73 void Student::attendClass()
74 {
75 cout<< name <<"加入"<< classes << "学习。\n\n";
76 }
77 void Student::introduce()
78 {
79 cout<< "大家好，我是" << name << "，我在" << classes << "学习。\n\n";
80 }
81
82 //助教类既继承于老师类，又继承于学生类
83 class Assistant:public Teacher,public Student
84 {
85 public:
86 Assistant(string theName,string classTeaching,string classAttending);
87
88 void introduce();
89 };
90 Assistant::Assistant(string theName,string classTeaching,string classAttending):Teacher(theName, classTeaching),Student(theName,classAttending)
91 {
92
93 //多继承 助教既继承老师类，又继承学生类
94
95 }
96 void Assistant::introduce()
97 {
98 cout << "大家好，我是" << Student::name << ".我教" << Teacher::classes << "，";
99 cout << "同时我在" << Student::classes << "学习。\n\n";
100 }
101
102 int main()
103 {
104 Teacher teacher("小甲鱼","C++入门班");
105 Student student("迷途羔羊","C++入门班");
106 Assistant assistant("丁丁","C++入门班","C++进阶班");
107
108 teacher.introduce();
109 teacher.teach();
110
111 student.introduce();
112 student.attendClass();
113
114 assistant.introduce();
115 assistant.teach();
116 assistant.attendClass();
117
118 return 0;
119 }
管理
