我的计算显示零？但它说我没有错误。我不做什么？ [英] My calculations are displaying zero?? but it says i have no errors.What am i not doing?

问题描述

使用System;

使用静态System.Console;
$


命名空间Shippings

{

   课程计划

    {

        static void Main（）

        {

            string shippedItems;

           十进制货物充值;

            shippedItems = InputItemsShipped（）;

            shipCharge = InputShippingCharges（）;

        }¥b $ b        public static string InputItemsShipped（）

        {

           字符串iShipped;

           写（"输入购买的商品数量："）;

            iShipped = ReadLine（）;

           返回iShipped;

        }¥b $ b        public static decimal InputShippingCharges（）

        {

            int itemsShipped = 0;

           十进制运费= 0m;



            if（itemsShipped == 1）

            {

               运费= 2.99m;

            }


  &NBSP; &NBSP; &NBSP; &NBSP; &NBSP;否则if（itemsShipped> 1&& itemsShipped< = 5）

  &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; {

  &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; shipping = Convert.ToDecimal（2.99 +（（itemsShipped - 1）* 1.99））;

  &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; }


  &NBSP; &NBSP; &NBSP; &NBSP; &NBSP;否则if（itemsShipped> 5&& itemsShipped< 15）

  &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; {

  &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; shipping = Convert.ToDecimal（2.99 +（1.99 * 4）+（（itemsShipped - 5）* 1.49））;

  &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; }¥b $ b  &NBSP; &NBSP; &NBSP; &NBSP; &NBSP;否则if（itemsShipped> 15）

  &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; {

  &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; shipping = Convert.ToDecimal（2.99 +（1.99 * 4）+（1.49 * 9）+（（itemsShipped - 14）* 0.99））;

  &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; }


  &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; WriteLine（"您运送的{0：f0}总件数将产生运费$ {1：f2}"，itemsShipped，shipping）;

  &NBSP; &NBSP; &NBSP; &NBSP; &NBSP; ReadKey（）;



  &NBSP; &NBSP; &NBSP; &NBSP; &NBSP;退货运费;

  &NBSP; &NBSP; &NBSP; }¥b $ b  &NBSP; }
}

using System;
using static System.Console;

namespace Shippings
{
    class Program
    {
        static void Main()
        {
            string shippedItems;
            decimal shipCharge;
            shippedItems = InputItemsShipped();
            shipCharge = InputShippingCharges();
        }
        public static string InputItemsShipped()
        {
            string iShipped;
            Write("Enter the number of item purchased: ");
            iShipped = ReadLine();
            return iShipped;
        }
        public static decimal InputShippingCharges()
        {
            int itemsShipped = 0;
            decimal shipping = 0m;

            if (itemsShipped == 1)
            {
                shipping = 2.99m;
            }

            else if (itemsShipped > 1 && itemsShipped <= 5)
            {
                shipping = Convert.ToDecimal(2.99 + ((itemsShipped - 1) * 1.99));
            }

            else if (itemsShipped > 5 && itemsShipped < 15)
            {
                shipping = Convert.ToDecimal(2.99 + (1.99 * 4) + ((itemsShipped - 5) * 1.49));
            }
            else if (itemsShipped > 15)
            {
                shipping = Convert.ToDecimal(2.99 + (1.99 * 4) + (1.49 * 9) + ((itemsShipped - 14) * 0.99));
            }

            WriteLine("Your Total items shipped of {0:f0} will incur a shipping charge of ${1:f2}", itemsShipped, shipping);
            ReadKey();

            return shipping;
        }
    }
}

推荐答案

你总是用值计算InputShippingCharges方法中的0。传递正确的值，你从上一个方法作为整数得到该方法作为参数：

you compute always with the value of 0 in the InputShippingCharges Method. Pass the correct value, you get from the previous method as integer to that method as argument:

        static void Main(string[] args)
        {
            string shippedItems;
            decimal shipCharge;
            int items = 0;
            shippedItems = InputItemsShipped();
            if (Int32.TryParse(shippedItems, out items))
                shipCharge = InputShippingCharges(items);
            else
                Console.WriteLine("No numeric input");

            Console.ReadKey();

        }

        public static string InputItemsShipped()
        {
            string iShipped;
            Console.WriteLine("Enter the number of item purchased: ");
            iShipped = Console.ReadLine();
            return iShipped;
        }

        public static decimal InputShippingCharges(int itemsShipped)
        {   
            decimal shipping = 0m;

            if (itemsShipped == 1)
            {
                shipping = 2.99m;
            }

            else if (itemsShipped > 1 && itemsShipped <= 5)
            {
                shipping = Convert.ToDecimal(2.99 + ((itemsShipped - 1) * 1.99));
            }

            else if (itemsShipped > 5 && itemsShipped < 15)
            {
                shipping = Convert.ToDecimal(2.99 + (1.99 * 4) + ((itemsShipped - 5) * 1.49));
            }
            else if (itemsShipped > 15)
            {
                shipping = Convert.ToDecimal(2.99 + (1.99 * 4) + (1.49 * 9) + ((itemsShipped - 14) * 0.99));
            }

            Console.WriteLine("Your Total items shipped of {0:f0} will incur a shipping charge of

{1：f2 }"，itemsShipped，shipping）;

退货运费;
}

{1:f2}", itemsShipped, shipping); return shipping; }

问候，

  Thorsten

  Thorsten

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