题解 | #找出字符串中第一个只出现一次的字符#
找出字符串中第一个只出现一次的字符
https://www.nowcoder.com/practice/e896d0f82f1246a3aa7b232ce38029d4
astr = input() found = False for cha in astr: if astr.count(cha) == 1: print(cha) found = True break if not found: print(-1)
找出字符串中第一个只出现一次的字符
https://www.nowcoder.com/practice/e896d0f82f1246a3aa7b232ce38029d4
astr = input() found = False for cha in astr: if astr.count(cha) == 1: print(cha) found = True break if not found: print(-1)
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