1 #include <iostream>
2 #include <cstring>
3 using namespace std;
4 class Teacher //教师类
5 {public:
6 Teacher(int,char [],char); //声明构造函数
7 void display(); //声明输出函数
8 private:
9 int num;
10 char name[20];
11 char sex;
12 };
13
14 Teacher::Teacher(int n,char nam[],char s) //定义构造函数
15 {num=n;
16 strcpy(name,nam);
17 sex=s;
18 }
19
20 void Teacher::display() //定义输出函数
21 {cout<<"num:"<<num<<endl;
22 cout<<"name:"<<name<<endl;
23 cout<<"sex:"<<sex<<endl;
24 }
25
26 class BirthDate //生日类
27 {public:
28 BirthDate(int,int,int); //声明构造函数
29 void display(); //声明输出函数
30 void change(int,int,int); //声明修改函数
31 private:
32 int year;
33 int month;
34 int day;
35 };
36
37 BirthDate::BirthDate(int y,int m,int d) //定义构造函数
38 {year=y;
39 month=m;
40 day=d;
41 }
42
43 void BirthDate::display() //定义输出函数
44 {cout<<"birthday:"<<month<<"/"<<day<<"/"<<year<<endl;}
45
46 void BirthDate::change(int y,int m,int d) //定义修改函数
47 {year=y;
48 month=m;
49 day=d;
50 }
51
52 class Professor:public Teacher //教授类
53 {public:
54 Professor(int,char [],char,int,int,int,float); //声明构造函数
55 void display(); //声明输出函数
56 void change(int,int,int); //声明修改函数
57 private:
58 float area;
59 BirthDate birthday; //定义BirthDate类的对象作为数据成员
60 };
61
62 Professor::Professor(int n,char nam[20],char s,int y,int m,int d,float a):
63 Teacher(n,nam,s),birthday(y,m,d),area(a){ } //定义构造函数
64
65 void Professor::display() //定义输出函数
66 {Teacher::display();
67 birthday.display();
68 cout<<"area:"<<area<<endl;
69 }
70
71 void Professor::change(int y,int m,int d) //定义修改函数
72 {birthday.change(y,m,d);
73 }
74
75 int main()
76 {Professor prof1(3012,"Zhang",'f',1949,10,1,125.4); //定义Professor对象prof1
77 cout<<endl<<"original data:"<<endl;
78 prof1.display(); //调用prof1对象的display函数
79 cout<<endl<<"new data:"<<endl;
80 prof1.change(1950,6,1); //调用prof1对象的change函数
81 prof1.display(); //调用prof1对象的display函数
82 return 0;
83 }
