lc557. 反转字符串中的单词 III

class Solution:
    def reverseWords(self, s: str) -> str:
        s_arr = s.split(" ")
        result_arr = []
        for x in s_arr:
            i = len(x) - 1
            x_re = ""
            while i >= 0:
                x_re += x[i]
                i -= 1
            result_arr.append(x_re)
        return " ".join(result_arr)