除“n"之外的所有嵌套文本的 XPath嵌套标签的文本 [英] XPath for all nested text except "n" nested tags' text

问题描述

我有以下 html.

<h3>标题</h3><p>一些东西</p><p>其他东西</p><p>其他东西</p><p>不必要的东西</p><p>其他不必要的东西</p>

到目前为止我已经写了这个表达式.

//div[@id="content"]//text()

哪个有效，但我想要的不是提取最后 2 个 <p> 元素的文本，因为这是不必要的.我试着写这个...

//div[@id="content"]/p[not(position() > last() - 2)]//text()

没有按预期工作.然后我尝试了这个...

//div[@id="content"]/[not(self::p[position() > last() - 2])]//text()

这也不起作用.

解决方案

此表达式返回您感兴趣的文本节点:

//div[@id="content"]/*[not(self::p and position() > last() - 2)]//文本()

您在 / 之后缺少一个 *.

I have following html.

<div id="content">
   <h3>Title</h3>
   <p>Some stuff</p>
   <p>other stuff</p>
   <p>other other stuff</p>
   <p>unnecessary stuff</p>
   <p>other unnecessary stuff</p>
</div>

I have written this expression so far.

//div[@id="content"]//text()

Which works but what I want is not to extract the text of last 2 <p> elements because that is unnecessary. I tried to write this...

//div[@id="content"]/p[not(position() > last() - 2)]//text()

Which did not work as expected. Then I tried this...

//div[@id="content"]/[not(self::p[position() > last() - 2])]//text()

Which also did not work.

解决方案

This expression returns the text nodes you are interested in:

//div[@id="content"]/*[not(self::p and position() > last() - 2)]//text()

You were missing an * after the /.

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