输入年份和月份，输出月份天数

    作者：软件技术二班B28
问题描述;输入年份和月份，输出天数
输入：年份和月数
输出 ;天数<pre name="code" class="csharp">namespace ConsoleApplication41
{
class Program
{
static void Main(string[] args)
{
////输入年份月份判断天数
int year = 0, month = 0, days = 0;

Console.WriteLine("请输入年份");
year = int.Parse(Console.ReadLine());
Console.WriteLine("请输入月份");
month = int.Parse(Console.ReadLine());

switch (month)
{
case 1:
case 3:
case 5:
case 7:
case 8:
case 10:
case 12: days = 31; break;
case 4:
case 6:
case 9:
case 11: days = 30; break;
case 2:
if ((year % 4 == 0 && year % 100 != 0) || (year % 400 == 0)) days = 29;
else days = 28;
break;

}

Console.WriteLine("{0}年{1}月有{2}天", year, month, days);
Console.ReadKey(true);
}
}
}