我正在尝试获取“href”但不能。
我有这个代码:
<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>
如何获取？
/music/news/dwight-yoakam-and-jack-black-to-produce-new-nashville-comedy-20151009
最佳答案
此代码使用 CSS 选择器获取所有 anchor 元素并打印它们的 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"
您可以通过使用 CSS 或 XPath 选择器来实现您的目标。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.”
关于ruby - 如何从标签中获取 "href"，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/33081845/