摘要: def is_valid(x): if len(x)!=18: return False for i in x: if not (i.isdigit() or i=='X'): return False else: return True with open('data3_id.txt','r',e 阅读全文
posted @ 2022-05-25 09:24 hhkki# 阅读(47) 评论(2) 推荐(0)