提示：返回的数组将拥有数值键，从0开始以基数1递增。

Tip: The returned array will have numeric keys, starting at 0 and increase by 1.

youdao

提示：返回的数组将拥有数值键，从0开始以基数1递增。

Tip: The returned array will have numeric keys, starting at 0 and increase by 1.

youdao