String to HtmlDocument
public System.Windows.Forms.HtmlDocument GetHtmlDocument(string html) ???????{ ???????????WebBrowser browser = new WebBrowser(); ???????????browser.ScriptErrorsSuppressed = true; ???????????browser.DocumentText = html; ???????????browser.Document.OpenNew(true); ???????????browser.Document.Write(html); ???????????browser.Refresh(); ???????????return browser.Document; ???????}【C#】[网络]WebBrowser网页操作之提取获取元素和标签（完整篇）
String to HtmlDocument
原文地址：https://www.cnblogs.com/bycnboy/p/9051571.html