60 leetcode - Length of Last Word

最新推荐文章于 2020-07-21 22:28:12 发布

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最新推荐文章于 2020-07-21 22:28:12 发布

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文章标签： leetcode Python last word length

本文链接：https://blog.youkuaiyun.com/lis_12/article/details/53888245

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本文介绍了一个简单的Python程序，该程序能够接收一个包含空格和字母的字符串，并返回字符串中最后一个单词的长度。如果字符串末尾没有单词，则返回0。文章通过一个具体的示例进行说明。

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#!/usr/bin/python
# -*- coding: utf-8 -*-
'''
Length of Last Word
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.
'''
class Solution(object):
    def lengthOfLastWord(self, s):
        """
        :type s: str
        :rtype: int
        """
        l = 0
        s = s.strip()
        for i in s:
            if i == ' ':
                l = 0
            else:
                l += 1

        return l

if __name__ == "__main__":
    s = Solution()
    print s.lengthOfLastWord("Hello World")
    print s.lengthOfLastWord("a ")
    print s.lengthOfLastWord("a d     adada     ")  #注意这种情况...