3.24

<pre name="code" class="cpp">#include <iostream>
using namespace std;
class Date
{
    private :
		int year;
		int month;
		int day;
	public : 
		void getyear();
		void getmonth();
		void getday();
		void setdate(); 
		void printDate();
		Date(int Y,int M,int D);
		Date ()
		{}
		Date(const Date &p)
		{
	        year=p.year;
        	month=p.month;
        	day=p.day;
		}
};
void Date::getyear()
{
	cout<<"年份："<<year<<endl;
}
void Date:: getmonth()
{
    cout<<"月份:"<<month<<endl;
}
void Date::getday()
{
    cout<<"日:"<<day<<endl;
}
Date::Date(int Y,int M,int D)
{
	year=Y;
	month=M;
	day=D;
}
void Date::printDate()
{
	cout<<"日期是："<<year<<"年"<<month<<"月"<<day<<"日"<<endl;
}
void Date::setdate()
{
    int y,m,d;
	cout<<"请输入年份"<<endl;
	cin>>y;
	cout<<"请输月份"<<endl;
    cin>>m;
    cout<<"请输入日"<<endl;
    cin>>d;
    year=y;
	month=m;
	day=d;
}
int main()
{
	Date d1(2010,6,8);
	cout<<"d1的相关信息:"<<endl;
	d1.getyear();
        d1.getmonth();
	d1.getday();
	d1.printDate();
	cout<<"--------------------------------"<<endl;
	Date d2;
	cout<<"d2的相关信息"<<endl;
	d2.setdate();
        d2.printDate();
        cout<<"--------------------------------"<<endl;
	Date d3(d1);
	cout<<"d3相关信息:"<<endl;
        d3.getyear();
        d3.getmonth();
	d3.getday();
	d3.printDate();
	return 0;
}