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比如html代码中有嵌套的table元素，要去到外层和内层的table的outerHtml。这需要进行正则的嵌套匹配。html代码如下：
I don’t understand what you are talking about. xpath maybe you can use.
If you want to parse xml or html, consider using nokogiri. However, I really don't understand your question very clearly.
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
I don’t understand what you are talking about. xpath maybe you can use.
If you want to parse xml or html, consider using nokogiri. However, I really don't understand your question very clearly.