leetcode编程题

58. Length of Last Word

java:

class Solution {

    public int lengthOfLastWord(String s) {
        String [] arr = s.split("\\s+");
        if(arr.length==0)
            return 0;
        return arr[arr.length-1].length();
    }

}

python:

def lengthOfLastWord(self, s):
    """
    :type s: str
    :rtype: int
    """
    s = s.strip(' ')
    return len(s) - 1 - s.rfind(' ')字符串s没被改变？///class Solution:
    def lengthOfLastWord(self, s):
        """
        :type s: str
        :rtype: int
        """
        return len(s.split()[len(s.split())-1]) if s.split() !=[] else 0;