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  • 清除文本中的Html标签

            以前做项目时,曾经遇到一个问题,就是要一段含html的文本中html的标签清除掉,并将清除后的文本显示在winform的Label上面。当时在网上搜寻了好久,终于找到了点资料,自己好好对照整理了下,现在分享给大家: 

           

    /// <summary>
            /// 清除文本中Html的标签
            /// </summary>
            /// <param name="Content"></param>
            /// <returns></returns>
            private string ClearHtml(string Content)
            {
                Content = Zxj_ReplaceHtml("&#[^>]*;", "", Content);
                Content = Zxj_ReplaceHtml("</?marquee[^>]*>", "", Content);
                Content = Zxj_ReplaceHtml("</?object[^>]*>", "", Content);
                Content = Zxj_ReplaceHtml("</?param[^>]*>", "", Content);
                Content = Zxj_ReplaceHtml("</?embed[^>]*>", "", Content);
                Content = Zxj_ReplaceHtml("</?table[^>]*>", "", Content);
                Content = Zxj_ReplaceHtml("&nbsp;", "", Content);
                Content = Zxj_ReplaceHtml("</?tr[^>]*>", "", Content);
                Content = Zxj_ReplaceHtml("</?th[^>]*>", "", Content);
                Content = Zxj_ReplaceHtml("</?p[^>]*>", "", Content);
                Content = Zxj_ReplaceHtml("</?a[^>]*>", "", Content);
                Content = Zxj_ReplaceHtml("</?img[^>]*>", "", Content);
                Content = Zxj_ReplaceHtml("</?tbody[^>]*>", "", Content);
                Content = Zxj_ReplaceHtml("</?li[^>]*>", "", Content);
                Content = Zxj_ReplaceHtml("</?span[^>]*>", "", Content);
                Content = Zxj_ReplaceHtml("</?div[^>]*>", "", Content);
                Content = Zxj_ReplaceHtml("</?th[^>]*>", "", Content);
                Content = Zxj_ReplaceHtml("</?td[^>]*>", "", Content);
                Content = Zxj_ReplaceHtml("</?script[^>]*>", "", Content);
                Content = Zxj_ReplaceHtml("(javascript|jscript|vbscript|vbs):", "", Content);
                Content = Zxj_ReplaceHtml("on(mouse|exit|error|click|key)", "", Content);
                Content = Zxj_ReplaceHtml("<\\?xml[^>]*>", "", Content);
                Content = Zxj_ReplaceHtml("<\\/?[a-z]+:[^>]*>", "", Content);
                Content = Zxj_ReplaceHtml("</?font[^>]*>", "", Content);
                Content = Zxj_ReplaceHtml("</?b[^>]*>", "", Content);
                Content = Zxj_ReplaceHtml("</?u[^>]*>", "", Content);
                Content = Zxj_ReplaceHtml("</?i[^>]*>", "", Content);
                Content = Zxj_ReplaceHtml("</?strong[^>]*>", "", Content);
                string clearHtml = Content;
                return clearHtml;
            }

        }

    /// <summary>
            /// 清除文本中的Html标签
            /// </summary>
            /// <param name="patrn">要替换的标签正则表达式</param>
            /// <param name="strRep">替换为的内容</param>
            /// <param name="content">要替换的内容</param>
            /// <returns></returns>
            private string Zxj_ReplaceHtml(string patrn, string strRep, string content)
            {
                if (string.IsNullOrEmpty(content))
                {
                    content = "";
                }
                Regex rgEx = new Regex(patrn, RegexOptions.IgnoreCase);
                string strTxt = rgEx.Replace(content, strRep);
                return strTxt;
            }

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  • 原文地址:https://www.cnblogs.com/kevinGao/p/2192732.html
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