这是什么意思usernamecanonlycontainlowercaseletter

更新时间2021-08-06 05:20:22

这是什么意思  username can only contain lowercase letters, numbers, and "." or "_ and can not be purely number

username can only contain lowercase letters, numbers, and "." or " and can not be purely number 用户名只能包含小写字母、数字、“。”或“”，不能为纯数字