去除html

 /// <summary>
        /// 将HTML去除  
        /// </summary>
        /// <param name="Htmlstring"></param>
        /// <returns></returns>
        public static string DelHTML(string Htmlstring)
        {
            #region
            //删除脚本 
            Htmlstring = System.Text.RegularExpressions.Regex.Replace(Htmlstring, @"<script[^>]*?>.*?</script>", "", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
            //删除HTML 

            //Htmlstring =System.Text.RegularExpressions. Regex.Replace(Htmlstring,@"<A>.*</A>",""); 
            //Htmlstring =System.Text.RegularExpressions. Regex.Replace(Htmlstring,@"<[a-zA-Z]*=.[a-zA-Z]*?[a-zA-Z]+=d&w=%[a-zA-Z]*|[A-Z0-9]",""); 
            Htmlstring = System.Text.RegularExpressions.Regex.Replace(Htmlstring, @"&(quot|#34);", "“", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
            Htmlstring = System.Text.RegularExpressions.Regex.Replace(Htmlstring, @"&(amp|#38);", "&", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
            Htmlstring = System.Text.RegularExpressions.Regex.Replace(Htmlstring, @"&(lt|#60);", "<", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
            Htmlstring = System.Text.RegularExpressions.Regex.Replace(Htmlstring, @"&(gt|#62);", ">", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
            Htmlstring = System.Text.RegularExpressions.Regex.Replace(Htmlstring, @"&(nbsp|#160);", " ", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
            Htmlstring = System.Text.RegularExpressions.Regex.Replace(Htmlstring, @"&(iexcl|#161);", "xa1", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
            Htmlstring = System.Text.RegularExpressions.Regex.Replace(Htmlstring, @"&(cent|#162);", "xa2", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
            Htmlstring = System.Text.RegularExpressions.Regex.Replace(Htmlstring, @"&(pound|#163);", "xa3", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
            Htmlstring = System.Text.RegularExpressions.Regex.Replace(Htmlstring, @"&(copy|#169);", "xa9", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
            Htmlstring = System.Text.RegularExpressions.Regex.Replace(Htmlstring, @"&#(d+);", "", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
            Htmlstring = System.Text.RegularExpressions.Regex.Replace(Htmlstring, @"<(.[^>]*)>", "", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
            Htmlstring = System.Text.RegularExpressions.Regex.Replace(Htmlstring, @"([
])[s]+", "", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
            Htmlstring = System.Text.RegularExpressions.Regex.Replace(Htmlstring, @"-->", "", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
            Htmlstring = System.Text.RegularExpressions.Regex.Replace(Htmlstring, @"<!--.*", "", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
            Htmlstring = System.Text.RegularExpressions.Regex.Replace(Htmlstring, @"&(quot|#34);", """, System.Text.RegularExpressions.RegexOptions.IgnoreCase);
            Htmlstring.Replace("<", "");
            Htmlstring.Replace(">", "");
            Htmlstring.Replace("
", "");
            //Htmlstring=HttpContext.Current.Server.HtmlEncode(Htmlstring).Trim(); 
            #endregion
            return Htmlstring;
        }