c# - 抛出异常时退出循环是否可以？

Question

我在Hackerrank.com上解决了一个任务，问题是这样的:

You have an Array. This Array contains numbers.
Now you enter two numbers:

• The first one describes a sum
• The second one describes the amount of indexes (sequence length) you add together

In the end you get the amount of sequences whose sum is your defined number

For example:

Your array is [ 1, 2, 3, 4], your sum is 3 and your sequence length is 2.
Now you take the first two indexes and output the sum: [1, 2] = 3.
This is equal to your sum, so now you have found one sequence.
The next sequence is [ 2, 3 ] = 5. This is not equal to 3, so your sequence counter stays 1.
The last sequence is [3, 4] = 7. This is also not equal to 3 and in the end, you found one sequence.

我为此编写了这段代码:

static int GetSequences(List<int> s, int d, int m)
{
    //m = segment-length
    //d = sum

    int count = 0;
    int j = 0;
    int k = 0; 

    do
    {
        try
        {
            List<int> temp = new List<int>();

            for (int i = 0; i < m; i++)
            {
                temp.Add(s[i + k]);
            }
            if (temp.Sum() == d)
            {
                count++;
            }
            j++;
            k++;
        }
        catch (ArgumentOutOfRangeException)
        {
            break;
        }

    } while (true);

    return count;
}

因为我不知道我要数多少次
(例如，序列长度为 3 的 6 长度数组有 4 个序列(1,2,3 | 2,3,4 | 3,4,5 | 4,5,6))，
当索引超出范围时，我将停止 while 循环。但我不确定这个解决方案是否可以。不仅与程序速度有关，而且与代码清洁度有关。这段代码是否可以接受，还是使用 for 循环更好，例如，对于具有 3 长度序列的 6 长度数组，该循环恰好循环 4 次？

Answer 1

不推荐，不。异常应该保留给不应该发生的事情，而不是流程控制或验证。

您想要的是使用条件逻辑(if 语句)和 break 关键字。

此外，codereview.stackexchange.com 更适合此类问题。