std.h

本文是类与对象实验所有内容

#include<iostream.h>
class Date; 
class Time
{
public:
	Time(int,int,int);  
friend void display(const Time&,const Date&); 
private:
	int hour;	
	int minute;
	int sec;
};
class Date
{
public:
	Date(int,int,int);
	friend void display(const Time&,const Date&);
private:
	int month;
	int day;
	int year;
};