Asp.Net判断某年某月总天数

Controllers

public static int GetDays(int year, int month)
{
int[] days = { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
if (month == 2 && ((year % 4 == 0 && year % 100 != 0) || year % 400 == 0))
{
return 29;
}
else if (month == 2)
{
month = 1;
return days[month];
}
else
{
month = month - 1;
return days[month];
}
}

调用
GetDays(year, month);