平闰年判断C++程序

#include <iostream>
using namespace std;
int main()
{
	int year=0;
	while (true)
	{
		cout << "请输入年份：";
		cin >> year;
		if (year<=0)
		{
			cout << "输入数据非法，请重新输入！" << endl;
			break;
		}
	   if ((year % 4 == 0 && year % 100 != 0) || year % 400 == 0)
		{
			cout << year << "为闰年"<< endl;
		}
		else 
		{
			cout << year << "为平年"<< endl;
		}
		
	}
}