You need to know how the Document Object Model (DOM) works only if you wish to change the code in this tutorial to suit your own applications.

只有当希望修改本教程中的代码以适应具体应用程序时才需要了解文档对象模型(DOM)的工作原理。

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The main drawback to the generated object model approach is that it ties your code directly to the structure of the XML document.

所生成的对象模型方法的主要缺点是它使您的代码与XML文档结构直接相关。

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Model, code and document generation.

模型、代码和文档产生。

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