LeetCode OJ1:Reverse Words in a String

问题描述:

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

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

解题思路:

先利用split()方法将句子按空格分为几个单词的列表,

然后reverse()函数使列表逆序,

最后join函数以空格为间隔拼成字符串返回结果。

Python代码:

class Solution:
    # @param s, a string
    # @return a string
    def reverseWords(self, s):
        a = s.split()
        a.reverse()
        return ' '.join(a)
       

posted @ 2014-08-16 10:25  Evermaple  阅读(97)  评论(0编辑  收藏  举报