判断奇偶

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

namespace 判断奇偶
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("判断奇偶");
            int a = int.Parse(Console.ReadLine());

            int iTest = a % 2;
            
            switch(iTest)
            {
                case 0:
                    Console.WriteLine("是偶数");
                    break;
                default:
                    Console.WriteLine("是奇数");
                    break;
                  
            
            }
            Console.ReadLine();

        }
    }
}