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我不斷收到索引超出範圍例外。我必須得到銷售人員編號和產品編號，然後在顯示總計之前獲得價格。C＃矩形陣列有3個銷售人員和5個產品
我不知道發生了什麼，因爲計算似乎是正確的。無論什麼錯誤都可能是我無法想象的小事。感謝幫助。在C＃
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();
}
}
}