文巾解题 557. 反转字符串中的单词 III

Posted 2021-09-03 UQI-LIUWJ

1 题目描述

 2 解题思路

2.1 单词倒转+使用join函数

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

2.2 单词倒转+使用辅助数组

import copy
class Solution(object):
    def reverseWords(self, s):
        """
        :type s: str
        :rtype: str
        """
        s1=s.split()
        for i in range(len(s1)):
            s1[i]=s1[i][::-1]
        #print(s1)
        index=0
        s2=''
        for i in s1:
            #print(i)
            s2+=i
            s2+=' '
        s=copy.deepcopy(s2[:-1])
        return(s)