using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
namespace ConsoleApplication4
{
class Program
{
static void Main(string[] args)
{
//请用户输年份,再输入月份,输出该月的天数.
Console.WriteLine("请用户输入年份");
string str_year = Console.ReadLine();
int year = Convert.ToInt32(str_year);
Console.WriteLine("请用户输入月份");
string str_month = Console.ReadLine();
int month = Convert.ToInt32(str_month);
if (month >= 1 && month <= 12)
{
int day = 0;
switch (month)
{
case 1:
case 3:
case 5:
case 7:
case 8:
case 10:
case 12:
day = 31;
break;
case 2:
if ((year % 400 == 0) || (year % 4 == 0 && year % 100 == 0))
{
day = 29;
}
else
{
day = 28;
}
break;
default:
day = 30;
break;
}//swich
Console.WriteLine("{0}年{1}月有{2}天", year, month, day);
}//if
else
{
Console.WriteLine("月份必须在1~12月之间，程序退出！！！");
}
Console.ReadKey();
}
}
}
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