using System;

using System.Collections.Generic;

using System.Text;

 

namespace ConsoleApplication1

{

 

   class 行李重量

 

   {

 

       static void Main(string[] args)

 

       {

 

 

           {

 

               Double a;

 

               while (true)

 

               {

 

                   Console.Write("请输入行李重量(kg)");

 

 

                    a = Convert.ToDouble(Console.ReadLine());

 

 

 

 

                   if (a >= 0 && a <= 50)

 

                   {

 

                       Double g = a * 0.25;

 

                       Console.WriteLine("您的运费为"+(a*0.25)+"元");

 

 

 

                   }

 

                   else if (a > 50)

 

                   {

 

                       Console.WriteLine("您的运费为"+(a*0.25+(a-50)*0.4) +"元");

 

                   }

 

                   else

 

                   {

 

                       Console.WriteLine("您的输入有误");

 

                   }

 

console.readline();

 

               }

 

           }

 

       }

 

   }

}