These classes let you retrieve information such as content and navigation hierarchy, layout information, and current page selection.

使用这些类，可以检索各种信息，例如内容和导航层次结构、布局信息和当前页面选择信息。

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The information you would get back is things like the actual class that implements the view you're looking at, which plug-in the class comes from, the current selection class, etc.

你获得的是类似于如下的信息：实现该视图的实际类、这个类来自哪个插件、当前所选的类等等。

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Once you do that, the plug-in Spy will present a pop-up that contains information like the current selection class and what plug-in it comes from.

完成后，Plug - in Spy将显示一个弹出窗口，其中包含诸如当前选择类及来自哪个插件之类的信息。

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