C++：编写日期（年月日）

#include
using namespace std;
class Date {
private:
int year;
int month;
int day;
public:
void setDate(int nYear,int nMonth,int nDay);
void display();
};

void Date::setDate(int nYear,int nMonth,int nDay)
{
year = nYear;
month = nMonth;
day = nDay;
}

void Date::display()
{
cout < }

int main()
{
Date date1,date2;
date1.setDate(2021,10,11);
date1.display();

date2.setDate(2021,11,11);
date2.display();

return 0;
}