bangking分为服务端与客户端，客户端在进行登录后从服务端获取数据，可进行取款，查询，存款操作；服务端可进行添加，删除，修改用户。(Bangking is divided into server and client, the client after the login, from the server to obtain data, withdrawals, inquiries, deposit operations; server can add, delete, modify use