【华为OD机试Python实现】HJ59 找出字符串中第一个只出现一次的字符（中等）

不太灵光的程序员发布时间：2022-04-05 16:30:31 ，浏览量：2

文章目录

题目描述
输入描述：
输出描述：
示例1
参考代码

题目描述

找出字符串中第一个只出现一次的字符

数据范围：输入的字符串长度满足 1≤n≤1000

输入描述：

输入一个非空字符串

输出描述：

输出第一个只出现一次的字符，如果不存在输出-1

示例1

输入：

asdfasdfo

输出：

参考代码

while 1:
    try:
        data =


    
        
        
        
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