作业3.24

#include<iostream>
using namespace std;
class Date
{
public:
void printDate()
{cout<<year<<"."<<month<<"."<<day<<endl;}
void GetYear()
{cout<<"year:"<<year<<endl;}
void GetMonth()
{cout<<"month:"<<month<<endl;}
void GetDay()
{cout<<"day:"<<day<<endl;}
Date(int y,int m,int d);
void SetDate(int y,int m,int d);
Date()
{}
private:
int year;
int month;
int day;
};
Date::Date(int y,int m,int d)
{year=y;month=m;day=d;}
void Date::SetDate(int y,int m,int d)
{year=y;month=m;day=d;}

int main()
{
Date d1(2010,6,8);
d1.printDate();
d1.GetYear();
d1.GetMonth();
d1.GetDay();
Date d2;
d2.SetDate(2015,3,31);
d2.printDate();
d2.GetYear();
d2.GetMonth();
d2.GetDay();
Date d3(d1);
d3.printDate();
d3.GetYear();
d3.GetMonth();
d3.GetDay();
return 0;
}