感谢您的反馈。我还有一个超出范围的例外。我正在调试,但无法理解为什么我会收到异常。如果int高于某个其他int,它应该工作。它与length.Count有什么关系吗?
更新代码
do
{
Console.Write("Input the element that you want to exclude from the list: ");
result = int.TryParse(Console.ReadLine(), out delSelection);
tempInputDelInt = (int)(tempList[delSelection]);
tempInputDelStr = Convert.ToString(tempInputDelInt);
if (result == true && tempInputDelInt >= 0 && tempInputDelInt < tempList.Count)
{
tempList.RemoveAt(delSelection);
Console.WriteLine("\nYou've deleted the temperature " + tempInputDelStr + " from index " + delSelection);
success = false;
Console.ReadKey(true);
Console.Clear();
}
else if (result == true && tempInputDelInt >= tempList.Count || tempInputDelInt < 0)
{
Console.WriteLine("You've input a number that's outside the list. Input a digit between 0 and " + (tempList.Count - 1) + ".\n");
success = true;
Console.ReadKey(true);
}
else if (result == false)
{
Console.WriteLine("\nYou didn't input a digit, try again!\n");
success = true;
Console.ReadKey(true);
}
} while (success);
success = false;
我在验证第一个if语句时遇到了一些问题。我希望在输入数组之外的值时捕获这些情况,但我不能设法。
我已经使用array.Length成功完成了一个几乎完全相同的程序。
array.List和list.Count之间有什么区别吗?这是问题所在吗?
提前感谢您的帮助!
do
{
Console.Write("Input the element that you want to exclude from the list: ");
result = int.TryParse(Console.ReadLine(), out delSelection);
tempInputDel = Convert.ToString(tempList[delSelection]);
if (result == true && delSelection >= 0 && delSelection < tempList.Count)
{
tempList.RemoveAt(delSelection);
Console.WriteLine("\nYou've deleted the temperature " + tempInputDel + " from index " + delSelection);
Console.ReadKey(true);
Console.Clear();
}
else if (result == true && delSelection >= tempList.Count || delSelection < 0)
{
Console.WriteLine("You've input a number that's outside the list. Input a digit between 0 and " + (tempList.Count - 1) + ".\n");
}
else if (result == false)
{
Console.WriteLine("\nYou didn't input a digit, try again!");
Console.ReadKey(true);
}
} while (result == false);
答案 0 :(得分:1)
更改此
tempInputDelInt = (int)(tempList[delSelection]);
到这个
tempInputDelInt = (int)delSelection;
无论用户输入什么号码,您都可以将其用作索引来确定要删除的项目。因此,它不是您从tempList
获得的价值。
答案 1 :(得分:0)
我假设你的超范围异常发生在这里:
tempInputDel = Convert.ToString(tempList[delSelection]);
如果delSelection
在tempList
范围内,则在检查之前无法执行此操作。将其移到第一个if
块内。
一般建议:
您可以使用调试器逐步从语句转到语句,以找到(例如)抛出异常的确切源代码位置。