题解 | #字符个数统计#
字符个数统计
https://www.nowcoder.com/practice/eb94f6a5b2ba49c6ac72d40b5ce95f50
str = input() list1 = [] for i in str: if i in list1: pass else: list1.append(i) print(len(list1))
字符个数统计
https://www.nowcoder.com/practice/eb94f6a5b2ba49c6ac72d40b5ce95f50
str = input() list1 = [] for i in str: if i in list1: pass else: list1.append(i) print(len(list1))
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