c# - 使用正则表达式的图像标签的 src

Question

我需要通过对以下字符串使用 regex 来找到第一个 img 标签的 src。 怎么做？

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Answer 1

Don't use Regex to parse html .使用真正的 html 解析器，如 HtmlAgilityPack

var html = WebUtility.HtmlDecode(yourtext);
var doc = new HtmlAgilityPack.HtmlDocument();
doc.LoadHtml(html);
var urls = doc.DocumentNode.SelectNodes("//img[@src]")
              .Select(img => img.Attributes["src"].Value)
              .ToList();