如何在C＃中的字符串中提取href标记？ [英] How to extract href tag from a string in C#?

问题描述

我有一个返回以下格式的字符串一个C＃功能：

I have a C# function that returns a string in the following format:

string tableTag = "<th><a href="Boot_53.html">135 Boot</a></th>"

我想要得到的HREF链接，存储到另一个字符串称为链接：

I want to get the href link and store into another string called link:

string link = "Boot_53.html"

我怎么能做到这一点在C＃？

How can I do that in C#?

推荐答案

如果您知道的HTML实际上是一个XHTML（一个HTML中符合XML standarts [或多或少]），您可以分析只是专用于XML工具（这是一般比那些HTML）简单。

If you know that the html is actually a xhtml (an html which conforms to the xml standarts [more or less]) you can parse is simply with tools dedicated to xml (which are generally simpler than those for html).

var hrefLink = XElement.Parse("<th><a href=\"Boot_53.html\">135 Boot</a></th>")
                       .Descendants("a")
                       .Select(x => x.Attribute("href").Value)
                       .FirstOrDefault();

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