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
string = input() flag = 0 for i in string: if string.count(i) == 1: flag += 1 print(i) exit() if flag == 0: 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
string = input() flag = 0 for i in string: if string.count(i) == 1: flag += 1 print(i) exit() if flag == 0: print(-1)
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