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如何使用 ruby​​ 从包含这些行的表中提取信息？是否可以使用 nokogiri 检测评论？

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尝试xpath改用：

html_doc = Nokogiri::HTML("<html><body><!-- Begin Topic Entry 4134 --></body></html>") 
html_doc.xpath('//comment()')
于 2011-10-14T16:07:07.207 回答
0

您可以实现 Nokogiri SAX Parser。这比乍看起来要快。你会得到元素、属性和评论的事件。

在您的解析器中，您应该记住状态，例如 @currently_interested = true 以知道哪些部分要记住，哪些不。

于 2009-07-25T12:03:49.967 回答