题解 | #字符个数统计#
字符个数统计
http://www.nowcoder.com/practice/eb94f6a5b2ba49c6ac72d40b5ce95f50
str_in = input() length = 0 result = '' for x in str_in: if x not in result: result = result + x length = length+1 print(length)
字符个数统计
http://www.nowcoder.com/practice/eb94f6a5b2ba49c6ac72d40b5ce95f50
str_in = input() length = 0 result = '' for x in str_in: if x not in result: result = result + x length = length+1 print(length)
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