With this method, the keyboard scanning function program and the display administering program will be organized logically, so the whole system program will be easy to program, read and revise.

用该方法编写键功能处理程序和显示管理程序有其独到的优越性，从而使整个系统程序更具条理，便于编写、阅读和修改。

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With this method, the keyboard scanning function program and the display administering program will be organized logically, so the whole system program will be easy to program, read and revise.

用该方法编写键功能处理程序和显示管理程序有其独到的优越性，从而使整个系统程序更具条理，便于编写、阅读和修改。

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