C++程序设计（第三版） 谭浩强 习题11.10 个人设计

习题 11.10 将本章11.8节中的程序片段加以补充完善，成为一个完整的程序。在程序中使用继承和组合。在定义Professor类对象prof1时给出所有数据的初值，然后修改prof1的生日数据，最后输出prof1的全部最新数据。

代码块：

#include <iostream>
#include <string>
using namespace std;
class Teacher
{
public:
	Teacher(){}
	Teacher(int n, string nam, char s){num=n; name=nam; sex=s;}
	void display(){
		cout<<"num: "<<num<<endl;
		cout<<"name: "<<name<<endl;
		cout<<"sex: "<<sex<<endl;
	}
protected:
	int num;
	string name;
	char sex;
};
class BirthDate
{
public:
	BirthDate(){}
	BirthDate(int y, int m, int d){year=y; month=m; day=d;}
	void display1(){
		cout<<"birthdate: "<<year<<"/"<<month<<"/"<<day<<endl;
	}
private:
	int year;
	int month;
	int day;
};
class Professor: public Teacher
{
public:
	Professor(int n, string nam, char s, BirthDate bd){
		num=n; name=nam; sex=s; birthday=bd;}
	void show(){
		display();
		birthday.display1();
	}
private:
	BirthDate birthday;
};
int main()
{
	BirthDate bd(1963, 12, 3);
	Professor prof1(101, "ZhangLei", 'M', bd);
	prof1.show();
	system("pause");
	return 0;
}