0058 最长一个单词的长度

class Solution:
    def lengthOfLastWord(self, s: str) -> int:
        i = len(s) - 1
        while i >= 0 and s[i] == ' ':
            i -= 1
        j = i
        while j >= 0 and s[j] != ' ':
            j -= 1
        return i - j

if __name__ == "__main__":
    sol = Solution()
    print(sol.lengthOfLastWord("Hello World"))
    print(sol.lengthOfLastWord("   fly me   to   the moon  "))
    print(sol.lengthOfLastWord("luffy is still joyboy"))