Python | Leetcode Python题解之第557题反转字符串中的单词III

题目：

题解：

class Solution:
    def reverseWords(self, s: str) -> str:
        stack, res, s = [], "", s + " "
        for i in s:
            stack.append(i)
            if i == " ":
                while(stack):
                    res += stack.pop()
        return res[1:]