删除HTML代码

最新推荐文章于 2022-01-02 20:53:20 发布

转载最新推荐文章于 2022-01-02 20:53:20 发布 · 160 阅读

0 ·

CC 4.0 BY-SA版权

原文链接：http://www.cnblogs.com/xsmhero/archive/2010/07/07/1772661.html

本文提供了一个实用的方法来清除字符串中的HTML标签、脚本内容及特殊字符实体。通过使用正则表达式，该方法能够有效地清洗文本数据，适用于预处理从网页抓取的内容。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

/// <summary>
        /// 删除HTML代码
        /// </summary>
        /// <param name="o">Html代码</param>
        /// <returns></returns>
        public static string ClearHTML(object o)
        {
            string Htmlstring = o.ToString();
            //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.HtmlDecode(Htmlstring).Trim();
            return Htmlstring.Trim();
        }

转载于:https://www.cnblogs.com/xsmhero/archive/2010/07/07/1772661.html