原题地址：https://oj.leetcode.com/problems/length-of-last-word/

题意：

Given a string s consists of upper/lower-case alphabets and empty space characters ' ', return the length of last word in the string.

If the last word does not exist, return 0.

Note: A word is defined as a character sequence consists of non-space characters only.

For example, 

Given s = "Hello World",

return 5.

解题思路：Python强大的处理字符串的能力。

代码：

class Solution:    # @param s, a string    # @return an integer    def lengthOfLastWord(self, s):        return len(s.split()[len(s.split())-1]) if s.split() != [] else 0