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
http://www.nowcoder.com/practice/e896d0f82f1246a3aa7b232ce38029d4
str1 = input()
data = {}
for i in str1:
if str1.count(i) == 1:
print(i)
break
else:
print(-1)
找出字符串中第一个只出现一次的字符
http://www.nowcoder.com/practice/e896d0f82f1246a3aa7b232ce38029d4
str1 = input()
data = {}
for i in str1:
if str1.count(i) == 1:
print(i)
break
else:
print(-1)
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