GET请求被缓冲起来，如果你多次提取相同的数据可提高性能。

GET requests are cached, which can improve performance if you're fetching the same data several times.

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您可以先提取一个项目或规则的XML表示，然后多次使用您所提取的作为一个模板构建同类型的新项目。

You can extract an XML representation of the project or rules once and then use what you extracted multiple times as a template to set up new projects of the same type.

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多次使用了 FormNodeP 对象的 extractXFormsInstance() 方法，用于从表单提取特定数据。

The extractXFormsInstance() method of the FormNodeP object is used a number of times to extract specific data from the form.

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