另外，sys_server表的pwd列显示为NULL，因为密码是隐藏的。
Also, the PWD column for the SYS_SERVER table shows NULL because the passwords are hidden.
隐藏的数据可以显示和未隐藏只有当用户输入有效的密码。
Hidden data can be displayed and unhidden only when the user enters the valid password.
您也可以选择不显示任何在系统托盘图标，并用密码隐藏选定的窗口，让你的“工作”的秘密！
You can also choose not to show any icon in the system tray, and to hide the selected window with a password, to keep your "work" secret!
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