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我不断收到索引超出范围异常。我必须先获得销售人员编号和产品编号，然后是价格，然后才能显示总数。

我不知道发生了什么，因为计算似乎正确。有什么问题可能是一些我似乎无法弄清楚的小问题。感谢帮助。

class Program
{
    static void Main(string[] args)
    {

        decimal[,] sales = new decimal[5, 3];
        int spnum;

        Console.WriteLine("Enter your Sales Person Number (type 999 to exit): ");
        spnum = Convert.ToInt32(Console.ReadLine());

        while(spnum != 999)
        {
            int prodnum;
            decimal price;
            decimal amount = 0;

        Console.WriteLine("Enter the product number: ");
        prodnum = Convert.ToInt32(Console.ReadLine());

        Console.WriteLine("Enter the total for the product: ");
        price = Convert.ToDecimal(Console.ReadLine());

        if (spnum >= 1 && spnum <= 3 && prodnum >= 1 && prodnum <= 5  && price >= 0)
        {
            sales[spnum - 1, prodnum - 1] += amount;
        }
        else
        {
            Console.WriteLine("You have entered an invalid number. Please try again.");
        }

        Console.WriteLine("Enter your salesperson (type 999 to exit): ");
        spnum = Convert.ToInt32(Console.ReadLine());

        }

        decimal[] total = new decimal[4];

        Console.WriteLine("\n{0,10}{1,16}{2,16}{3,16}{4,12}", "Product", "SalesPerson1", "SalesPerson2", "SalesPerson3", "Total");

              for (int row = 0; row < 5; row +=1)
        {
            decimal prodtot = 0M;
                  Console.Write("{0,10}", (row+=1));

                  for (int colum = 0; colum < 3; colum +=1)
                  {
                      Console.Write("{0,16:C}", sales[row, colum]);
                      prodtot += sales[row, colum];
                      total[colum] += sales[row, colum];
                  }
                  Console.Write("{0,10:C}", total);

                  for (int c = 0; c < 3; c += 1)
                  {
                      Console.Write("{0,16:C}", total[c]);
                      Console.ReadLine();
                  }
        }

    }
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2 回答 2

2

C# 中的数组索引基于 0。在您的情况下，它们从 0 到 2 和 0 到 4 运行。

于 2013-04-02T18:43:31.877 回答
1

您将销售声明为：

decimal[,] sales = new decimal[5, 3];

然后你在这里使用它们：

if (spnum >= 1 && spnum <= 3 && prodnum >= 1 && prodnum <= 5  && price >= 0)
{
    sales[spnum - 1, prodnum - 1] += amount;
}

prodnum - 1可以大于 2。

于 2013-04-02T18:48:03.250 回答