可进行开户，存款，取款以及查询余额的操作，并动态的调节利率的大小。 或以一般用户的身份（user）登录，进行自身密码的修改，业务的办理。 -available for the opening of accounts, deposits, withdrawals, balance inquiries and the operation and dynamic adjustment of interest rates size. Or to the general user identity