结果是出现一个进度对话框，概述程序正在执行的一切。
The result is a progress dialog box that summarizes what the program is doing.
让我们先来看一看程序的概述，接下来再分节说明每个组件。
We will start with an overview of the program, followed by a sectional description of each component.
我们的应用程序需求概述了统一化的应用程序必须要完成的操作，以及怎样对其进行的操作。
Our application requirements outline what the unified application needs to do and how it needs to be done.
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