C#版--判斷一個月有多少天

用switch語句實現，與C語言不同的是，default後必須增加break語句

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace dataOper
{
    class Program
    {
        static void Main(string[] args)
        {
            int month, days;
            month = int.Parse(Console.ReadLine());
            switch (month)
            {                
                case 2: days = 28; break;
                case 4:
                case 6:
                case 9:
                case 11: days = 30; break;
                default: days = 31; break;
                
            }
            Console.WriteLine("month:{0}, days:{1}",month,days);
            Console.ReadLine();
        }
    }
}