XPP suffers from requiring more steps for parsing and writing text documents, and for working with namespaces.

XPP在语法分析和编写文本文档时需要更多步骤，并且在处理名称空间时也需要更多步骤。

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Once you have an instance of XPath, you can start to configure it by changing the context, working with namespaces, and evaluating expressions.

一旦得到了 XPath 的实例，就可以开始通过改变上下文、处理名称空间和计算表达式来配置它。

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Part 2 (July 2004) looks at more difficult topics, such as working with namespaces, validating XML documents, and building XML structures without a typical XML document.

第2部分(2004年7月)介绍了比较难的主题，比如使用名称空间、验证x ML文档和无需典型的XML文档来构建XML结构。

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