节点可以是一段文本(比如元素的内容)、一个元素、一条处理指令或者注释。

A node can be a piece of text (such as an element's content), an element, or a processing instruction or comment.

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清单7显示了从树中删除节点的代码段。

Listing 7 shows the code snippet that's handling the deletion of a node from the tree.

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然后，代码段返回响应，如前所述，该响应流向InputResponse节点。

The snippet then returns the response, which then flows to the InputResponse node, as described above.

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