people.h

一个简单的people类程序

#include<iostream>
#include<cstring>
using namespace std;
class data
{
public:
	data(int y,int m,int d)
	{
		year=y; 
		month=m;
		day=d;
		cout<<"data's constructor called"<<endl;
	}
	data(){}
	~data(){cout<<"data's destructor called"<<endl;}
	void display()
	{
		cout<<year<<"年"<<month<<"月"<<day<<"日"<<endl;
	}
private:
	int year,month,day;
};
class people
{
public:
	people(string n,string no,string s,data birth,string i):birthday(birth)
	{
	    name=n;
	    number=no;
	    sex=s;
	    id=i;
		cout<<"people's constructor called"<<endl;
	}
	people(){}
	~people(){cout<<"people's destructor called"<<endl;}
	void show();
protected:
	data birthday;
	string name,number,sex,id;
};