是否有另一种方法来检查数组是否为空

Question

我添加了一个条件来检查数组是否为空，并自动将一个整数设置为大于数组的大小，因为它是空的，但我得到一个“索引超出了数组的范围”。改为消息

    public static bool hurdleJump(int[] hurdles, int jumpHeight)
    {
        int max = hurdles[0];

        if (hurdles == null && hurdles.Length == 0)
        {
            return false;
        }
        else if (hurdles != null || hurdles.Length >= 1)
        {
            for (int i = 0; i < hurdles.Length - 1; i++)
            {
                max = max < hurdles[i+1] ? hurdles[i+1] : max;
            }
            if (jumpHeight >= max)
            {
                return true;
            }
        }
            return false;
    }

    static void Main(string[] args)
    {
        Console.WriteLine(hurdleJump(new int[] {}, 7));
    }

Answer 1

1. 在我们确保句柄不为空或不为空之后，将最大初始化移至。

2. 将第一个 && 更改为 ||。

    public static bool hurdleJump(int[] hurdles, int jumpHeight)
    {
        if (hurdles == null || hurdles.Length == 0)
        {
            return false;
        }
        else
        {
            int max = hurdles[0];
            for (int i = 0; i < hurdles.Length - 1; i++)
            {
                max = max < hurdles[i + 1] ? hurdles[i + 1] : max;
            }
            if (jumpHeight >= max)
            {
                return true;
            }
        }
        return false;
    }