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
while True:
try:
a = input()
count = -1
for i in range(len(a)):
if a.count(a[i]) == 1:
count = a[i]
break
print(count)
except:
break
