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 False br 阅读全文
posted @ 2022-05-24 21:48 我真是想笑 阅读(5) 评论(0) 推荐(0) 编辑