getDaysInMonth static method
获取这个月的天数
Implementation
static int getDaysInMonth(int year, int month) {
if (month == DateTime.february) {
final bool isLeapYear =
(year % 4 == 0) && (year % 100 != 0) || (year % 400 == 0);
if (isLeapYear) return 29;
return 28;
}
return _daysInMonth[month - 1];
}