//定義一個日期類
#include <iostream>
class Date
{
private :
    int year,month,day;
public:
    void set(int year, int month, int day);
    bool fun();
    void show();
    
};
//Date 類中成員函式的實現(可以使用預設值)
void Date::set(int _year, int _month, int _day)
{
    year=_year;
    month=_month;
    day=_day;
}
bool Date::fun()
{
    if ((year%4==0&&year%100!=0)||(year%400==0)) {
        return true;
    }
    else
        return false;
}
void Date::show()
{
    std::cout<<year<<"-"<<month<<"-"<<day<<std::endl;
}
int main(int argc, const char * argv[])
{
    Date newDate;
    newDate.set(2013, 11, 18);
    newDate.show();
}