如何从标签获得“href”

我有这样的代码：

<h3 class="list-item-hd"> 
    <a href="/music/news/dwight-yoakam-and-jack-black-to-produce-new-nashville-comedy-20151009">Dwight Yoakam and Jack Black to Produce New Nashville Comedy</a> 
</h3>

我怎样才能得到？

/music/news/dwight-yoakam-and-jack-black-to-produce-new-nashville-comedy-20151009

来源

2015-10-12 John Doe

该代码使用CSS选择器来获取所有锚元素和打印他们href属性：

require 'nokogiri' 

html = <<EOT 
<html> 
    <h3 class="list-item-hd"> 
     <a href="/music/news/dwight-yoakam-and-jack-black-to-produce-new-nashville-comedy-20151009">Dwight Yoakam and Jack Black to Produce New Nashville Comedy</a> 
    </h3> 
</html> 
EOT 

doc = Nokogiri::HTML(html) 
doc.css('a').map { |link| p link['href'] } 
# => "/music/news/dwight-yoakam-and-jack-black-to-produce-new-nashville-comedy-20151009"

您可以使用CSS或XPath选择通过或者实现自己的目标。要了解有关CSS和XPath选择器的更多信息，我强烈建议您查看“Official Nokogiri Documentation for Searching a XML/HTML Document.”

来源

2015-10-12 15:29:15

如何从标签获得“href”

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