给定一个字符串，你需要反转字符串中每个单词的字符顺序，同时仍保留空格和单词的初始顺序。

示例：

输入："Let's take LeetCode contest"
输出："s'teL ekat edoCteeL tsetnoc"

来源：力扣（LeetCode）
链接：https://leetcode-cn.com/problems/reverse-words-in-a-string-iii
著作权归领扣网络所有。商业转载请联系官方授权，非商业转载请注明出处。

思路

" ".join(word for word in s.split(" "))

输出"Let's take LeetCode contest"（正序

class Solution(object):
    def reverseWords(self, s):
        """
        :type s: str
        :rtype: str
        """
        return " ".join(word[::-1] for word in s.split(" "))

切片

知识点：

https://www.runoob.com/python3/python3-string-join.html

https://www.runoob.com/python/att-string-split.html

https://www.runoob.com/note/51257