题目
Given a string, you need to reverse the order of characters in each word within a sentence while still preserving whitespace and initial word order.
Example 1:
Input: "Let's take LeetCode contest"
Output: "s'teL ekat edoCteeL tsetnoc"
Note: In the string, each word is separated by single space and there will not be any extra space in the string.
思路
由于字符串中每个单词仅有一个space区分开，而且没有多余的空格，所以
- 将字符串转化为list；
- 遍历list中的每个元素，将其反转，并存入到一个新的list中；
- 将新的list用space.join()操作生成新的字符串并返回。
代码(python)
class Solution(object):
def reverseWords(self, s):
"""
:type s: str
:rtype: str
"""
li = s.split()
res = []
for each in li:
res.append(each[::-1])
return ' '.join(res)
