摘要: def is_valid(x): ls = [str(i) for i in range(0, 10)] ls.append('X') if len(x) < 18: return False for a in range(len(x)): if x[a] not in ls: return Fal 阅读全文
posted @ 2022-05-24 16:28 王景如 阅读(6) 评论(1) 推荐(0) 编辑