/*  
02.02.*烟台大学计算机学院学生  
03.03.*All right reserved.  
04.04.*文件名称*烟台大学计算机学院学生  
05.05.*All right reserved.  
06.06.*文件名称:继承与组合
07.07.*作者：王洪海  
08.08.*完成日期：2013年6月12日  
09.09.*版本号：v1.0  
10.10.*对任务及求解方法的描述部分:继承与组合 
11.11.*我的程序：  
12.12.*/    


#include <iostream>
#include <string>
using namespace std;
class BirthDate
{
public:
    BirthDate(int,int,int);
    void display();
    void setbirthday(int,int,int);
private:
    int year;
    int month;
    int day;
};
class Teacher
{
public:
    Teacher(int,string,char);
    void display();
private:
    int num;
    string name;
    char sex;
};
class Professor:public Teacher
{
public:
    Professor(int,string,char,BirthDate);
    void display();
    void setbirthday(int,int,int);
private:
    BirthDate birthday;
};


/* C++代码 */
BirthDate::BirthDate(int y,int m,int d):
  year(y),month(m),day(d){}
void BirthDate::display()
{
    cout<<"birthday:"<<year<<"/"<<month<<"/"<<day<<endl;
}
void BirthDate::setbirthday(int y,int m,int d)
{
    year=y;
    month=m;
    day=d;
}


Teacher::Teacher(int n,string na,char s):
  num(n),name(na),sex(s){}
void Teacher::display()
{
    cout<<"num:"<<num<<endl;
    cout<<"name:"<<name<<endl;
    cout<<"sex:"<<sex<<endl;
}


Professor::Professor(int n,string na,char s,BirthDate m):     //此处比较重要！！！
  Teacher(n,na,s),birthday(m){}   //类作为数据成员时，要用对象进行构造函数的赋值！！！
void Professor::display()
{
    Teacher::display();
    birthday.display();
}
void Professor::setbirthday(int y,int m,int d)
{
    birthday.setbirthday(y,m,d);
}

int main()
{
    int num;
    string name;
    char sex;
    int year,month,day;
    cin>>num>>name>>sex;
    cin>>year>>month>>day;
    Professor prof(num,name,sex,BirthDate(year,month,day));
    cin>>year>>month>>day;
    prof.setbirthday(year,month,day);
    prof.display();
    return 0;
}

运行结果，如下图：