我们创建完整窗口来显示每个幻灯片，并取相关内容置入其中。
We create a full window to show every slide and fetch associated contents into it.
接下来，我们创建完整窗口来显示每个幻灯片，并取相关内容置入其中。
Next, we create a full window to show every slide and fetch associated contents into it.
在树中选择一个节点可以在编辑区中显示出代码或者相关内容。
Selecting a node within the tree pane displays the code or content associated with it in the editor pane.
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