.NET去掉HTML标记

 using System.Text.RegularExpressions;
 
 /// <summary>
 
   /// 去除HTML标记
 
   /// </summary>
 
   /// <param name="DeleteHTML">包括HTML的源码 </param>
 
   /// <returns>已经去除Html标签后的文字</returns>
 
   public static string  DeleteHTML(string Htmlstring)
 
   { 
 
    //删除脚本
 
    Htmlstring = Regex.Replace(Htmlstring,@"<script[^>]*?>.*?</script>","",RegexOptions.IgnoreCase);
 
    //删除HTML
 
    Htmlstring = Regex.Replace(Htmlstring,@"<(.[^>]*)>","",RegexOptions.IgnoreCase);
 
    Htmlstring = Regex.Replace(Htmlstring,@"([\r\n])[\s]+","",RegexOptions.IgnoreCase);
 
    Htmlstring = Regex.Replace(Htmlstring,@"-->","",RegexOptions.IgnoreCase);
 
    Htmlstring = Regex.Replace(Htmlstring,@"<!--.*","",RegexOptions.IgnoreCase);
 
    Htmlstring = Regex.Replace(Htmlstring,@"&(quot|#34);","\"",RegexOptions.IgnoreCase);
 
    Htmlstring = Regex.Replace(Htmlstring,@"&(amp|#38);","&",RegexOptions.IgnoreCase);
 
    Htmlstring = Regex.Replace(Htmlstring,@"&(lt|#60);","<",RegexOptions.IgnoreCase);
 
    Htmlstring = Regex.Replace(Htmlstring,@"&(gt|#62);",">",RegexOptions.IgnoreCase);
 
    Htmlstring = Regex.Replace(Htmlstring,@"&(nbsp|#160);"," ",RegexOptions.IgnoreCase);
 
    Htmlstring = Regex.Replace(Htmlstring,@"&(iexcl|#161);","\xa1",RegexOptions.IgnoreCase);
 
    Htmlstring = Regex.Replace(Htmlstring,@"&(cent|#162);","\xa2",RegexOptions.IgnoreCase);
 
    Htmlstring = Regex.Replace(Htmlstring,@"&(pound|#163);","\xa3",RegexOptions.IgnoreCase);
 
    Htmlstring = Regex.Replace(Htmlstring,@"&(copy|#169);","\xa9",RegexOptions.IgnoreCase);
 
    Htmlstring = Regex.Replace(Htmlstring, @"&#(\d+);","",RegexOptions.IgnoreCase);
 
    Htmlstring.Replace("<","");
 
    Htmlstring.Replace(">","");
 
    Htmlstring.Replace("\r\n","");
 
    Htmlstring=HttpContext.Current.Server.HtmlEncode(Htmlstring).Trim();
 
    return Htmlstring;
 
   }