asp.net如何去掉HTML标记

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// <summary>

/// 去除HTML标记

/// </summary>

/// <param name="NoHTML">包括HTML的源码 </param>

/// <returns>已经去除后的文字</returns>

public static string NoHTML(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;

}