题解 | #字符个数统计#
字符个数统计
https://www.nowcoder.com/practice/eb94f6a5b2ba49c6ac72d40b5ce95f50
s = str(input()) e=[] for i in range(len(s)): if s[i] in e: pass else: e.append(s[i]) print(len(e))
字符个数统计
https://www.nowcoder.com/practice/eb94f6a5b2ba49c6ac72d40b5ce95f50
s = str(input()) e=[] for i in range(len(s)): if s[i] in e: pass else: e.append(s[i]) print(len(e))
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