#include<iostream>
using namespace std;
int days[] = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31};
class Date{
private:
	int year;
	int month;
	int day;
public:
	Date(){}
	Date(int y, int m, int d):year(y),month(m),day(d){}
	~Date(){}
	bool fun();//判断是否闰二月 
	bool Setvalue(int y, int m, int d);
	int calday();
};
bool Date::fun()
{
	if (year%400 == 0)
		return true;
	else if (year%100 != 0 && year%4 == 0)
		return true;
	else
		return false;
}
bool Date::Setvalue(int y, int m, int d)
{
	year = y;
	month = m;
	day = d;
	if (month <= 0 || month > 12)
		return false;
	else if (day <= 0)
		return false;
	else if (!fun() && day > days[month-1])
		return false;
	else if (month == 2 && fun() && day > days[month-1] + 1)
		return false;
	else
		return true;
}
int Date::calday()
{
	int sum = 0;
	for (int i = 1; i < month; i++) {
		sum += days[i-1];
	}
	sum += day;
	if (fun() && ...