作业3.24

#include<iostream>using namespace std;class Date{int year;int month;int day;public:void getyear(int y){        year=y;}void getmonth(int m){        month=m;}void getday(int d){        day=d;}Date(int y,int m,int d)//有参构造函数{year=y;month=m;day=d;}Date()//无参构造函数{year=1996;month=2;day=11;}void printdate()   //显示日期{cout<<"日期是:"<<year<<"年"<<month<<"月"<<day<<"日"<<endl;}Date(const Date& d)   //自定义的拷贝构造函数{year=d.year;month=d.month;day=d.day;}};int main(){Date d1(2010,6,8);Date d2;Date d3(d1);d1.printdate();d2.printdate();d3.printdate();return 0;}