将字符串中的HTML标签包含的内容移除

Posted 2023-02-26 xiashulin

public static string Deletehtml(string Htmlstring)//将字符串中的HTML标签包含的内容移除
       
            #region

 
            //删除js脚本

            Htmlstring = System.Text.RegularExpressions.Regex.Replace(Htmlstring, @"<script[^>]*?>.*?</script>", "", System.Text.RegularExpressions.RegexOptions.IgnoreCase);

            //删除HTML标签

            Htmlstring = System.Text.RegularExpressions.Regex.Replace(Htmlstring, @"<(.[^>]*)>", "", System.Text.RegularExpressions.RegexOptions.IgnoreCase);

            Htmlstring = System.Text.RegularExpressions.Regex.Replace(Htmlstring, @"([\\r\\n])[\\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,@"<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.Replace("<", "");

            Htmlstring.Replace(">", "");

            Htmlstring.Replace("\\r\\n", "");

            //Htmlstring=HttpContext.Current.Server.HtmlEncode(Htmlstring).Trim();
            #endregion

            return Htmlstring;