第一个只出现一次的字符位置 .py

# -*- coding:utf-8 -*-
class Solution:
    def FirstNotRepeatingChar(self, s):
        # write code here
        if not s:
            return -1
        for i in s:
            if s.count(i) == 1:
                return s.index(i)
        
        
if __name__ == "__main__":
    sol = Solution()
    target = 'qqqqqqewfrttttuiolllmkvj'
    print sol.FirstNotRepeatingChar(target)