题解 | #汽水瓶#
字符个数统计
http://www.nowcoder.com/practice/eb94f6a5b2ba49c6ac72d40b5ce95f50
def findCharNum(string): list0 = [] for s in str0: if s not in list0: list0.append(s) return len(list0) if __name__ == '__main__': str0 = input() print(findCharNum(str0))
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