Asp.net：清空一段文字内的所有html标签

来源：互联网发布：mac怎么切换中英文编辑：程序博客网时间：2024/05/21 17:22

using System;using System.Collections.Generic;using System.Linq;using System.Text.RegularExpressions;using System.Web;/// <summary>/// ClearHTML 的摘要说明/// </summary>public class ClearHTML{    public ClearHTML()    {    }    /// <summary>    /// 清除文本中Html的标签    /// </summary>    /// <param name="Content"></param>    /// <returns></returns>    public string Clear(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(" ", "", 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;    }}

调用方式：

            string str = "<a href='www.baidu.com'>这里空气清新，大神指日可待！</a><b>你好a酸大苏打 ，</b><span>这是我的清楚标签的示例，<b>请你测试一下，我试验过，正确的啊！</b></span>";            ClearHTML c = new ClearHTML();            str = c.Clear(str);

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