leetcode 【 Reverse Words in a String 】python 实现

题目：

Given an input string, reverse the string word by word.

For example,
Given s = "the sky is blue",
return "blue is sky the".

代码：oj在线测试通过 Runtime: 172 ms

 1 class Solution:
 2     # @param s, a string
 3     # @return a string
 4     def reverseWords(self, s):
 5         words = s.split(‘ ‘)
 6
 7         if len(words) < 2 :
 8             return s
 9
10         tmp = ""
11         for word in words:
12             word = word.replace(‘ ‘,‘‘)
13             if word != "" :
14                 tmp = word + " " + tmp
15
16         tmp = tmp.strip()
17
18         return tmp

思路：

把中间多个空格考虑去除了就OK了

最后用strip()函数把首位的空白去了

时间： 2024-10-13 01:24:29

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