摘要: task.3.py def is_valid(s): if len(s)!=18: return False elif s.isdigit()==bool(1) or 'X' in s : return bool(1) else: return False with open('D:\\data3_ 阅读全文
posted @ 2022-05-21 20:55 星标g 阅读(18) 评论(3) 推荐(0) 编辑