c#100 计算行李重量

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();

                }

            }

        }

    }

}