程序要让使用者可以添加，删除，查询和显示特定的雇佣者信息。
Your program should let users add, delete, locate, and display specific employee information.
另一个重要的考虑是，使用者只能直接操作那些应用程序已经显示的信息。
Another important consideration is that users can directly manipulate only things that are displayed by the application.
嵌入式图形用户界面作为嵌入式设备与使用者之间的交互接口，它不仅能够显示系统信息，而且能够简化操作。
Embedded graphical user interface as the interactive interaction between embedded device and users, it is not only display system information, but also simplify the operation.
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