CustomerServicebean是个工具类，它实现了访问数据库以增加、更新、删除和查询用户信息的方法。
The CustomerService bean is a utility class that implements methods to access the database for adding, updating, removing, and retrieving customer information.
每次用户被加入或从一个网络组中删除时，就应该增加这个版本号。
The version should increment every time the user is added to or deleted from a network group.
管理码（母码）可以删除或者增加用户码（子码）；
Master password can be used to add or delete any sub password.
但用户不能对光盘作任何改动，既不能增加也不能删除光盘上的信息。
Once it 's done, the user can not make any change. He can not ADD any information to it or delete any information from it.
管理功能是管理员用来管理网站的，在这里，管理员可以增加和删除用户，设置用户权限。
Management administrator is used to manage the site, where managers can increase and delete users, set up user privileges.
在此系统的支持下，用户能很方便地修改、增加或删除各类报表。
From this, we set up the statistics generation system with which the users may easily modify, add or delete the various forms.
点击菜单区“设置”下的“用户管理”，可以增加、删除用户，还可修改当前用户的密码。
Click "user management" under "Setup" to add or delete users or change present password.
点击菜单区“设置”下的“用户管理”，可以增加、删除用户，还可修改当前用户的密码。
Click "user management" under "Setup" to add or delete users or change present password.
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