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Description: 系统用户分为管理员、注册用户和普通用户。
a) 提供注册功能，系统的访问者可以注册成为注册用户，注册信息包括卡号、密码和其他个人信息。注册用户没有任何操作权限，必须经管理员审批通过后成为普通用户才有权操作。新注册的用户，卡上初始金额为0。
b) 普通用户可以执行现金转入、现金转出、个人信息修改、余额查询和交易记录查询功能。
c) 用户可以录入转入金额和转出金额，当转出金额大于信用卡的余额时，须判断透支金额是否在本卡的信用额度内（信用额度由管理员设定），如果在则允许透支，否则拒绝支出。
d) 当信用卡发生透支后，在20天内不计利息，20天后按每天1 计算利息，当透支金额+透支利息超过本卡的信用额度，则本卡自动转入“黑名单”（利息继续计算），不再允许进行现金转出操作。
e) 普通用户可以随时查看卡内余额。
f) 普通用户可以按时间段查看交易记录，包括转入、转出和透支情况。
g) 管理员可以审核注册用户，设定用户信用额度，批准成为普通用户。
h) 管理员可以查看系统内的黑名单，包括卡号和透支额度。
-System users into administrators, registered users and ordinary users.
a) provide up function, the system visitors can register to become a registered user registration information including card numbers, passwords and other personal information. Registered users have no operating authority, must be approved by the administrator after the passage of power to operate as a normal user. New registered users, the initial amount on the card to 0.
b) into the ordinary user can perform cash, cash roll-out, personal information changes, balance inquiries and transaction history query.
c) the user can input into the amount and the amount transferred, when the transferred credit card balance is greater than the amount of time required to determine whether the amount of overdraft line of credit in the card (the credit limit set by the administrator), if allowed overdraft, or reject expenditures.
d) When the credit card overdraft occurred after 20 days without interest in 20 days, interest
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Author: emma |
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