Filter, replace

Original link: http://www.cnblogs.com/luofeng99/archive/2011/07/14/2177593.html

       string str2 = FilterHtml(this.TextBox1.Text.ToString());
       this.TextBox2.Text = str.Replace("1\r\n                                                             楼", "LOVE");
        Regex regex = new Regex("1[1\\S|\\s]*楼");
       string a = regex.Replace(this.TextBox1.Text.ToString(), "1楼");

        b = this.TextBox1.Text.ToString();
        Regex regex = new Regex("{n}[\\S|\\s]*楼");
        b = regex.Replace(b, "31");

 

 

 public static string FilterHtml(string input)
    {
        if (input == null || input == "")
            return input;
        input = input.Replace("&", "&");
        input = input.Replace("<", "&lt;");
        input = input.Replace(">", "&gt;");
        input = input.Replace(" ", "&nbsp;");
        //input = input.Replace("'", "&#39;");
        input = input.Replace("\\", "&quot;");
        input = input.Replace("\r\n", "<br>\r\n");
        return input;
    }

 

 

public string checkStr(string html)
      {
          System.Text.RegularExpressions.Regex regex1 = new System.Text.RegularExpressions.Regex(@"<script[\s\S]+</script *>", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
          System.Text.RegularExpressions.Regex regex2 = new System.Text.RegularExpressions.Regex(@" href *= *[\s\S]*script *:", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
          System.Text.RegularExpressions.Regex regex3 = new System.Text.RegularExpressions.Regex(@" no[\s\S]*=", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
          System.Text.RegularExpressions.Regex regex4 = new System.Text.RegularExpressions.Regex(@"<iframe[\s\S]+</iframe *>", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
          System.Text.RegularExpressions.Regex regex5 = new System.Text.RegularExpressions.Regex(@"<frameset[\s\S]+</frameset *>", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
          System.Text.RegularExpressions.Regex regex6 = new System.Text.RegularExpressions.Regex(@"\<img[^\>]+\>", System.Text.RegularExpressions.RegexOptions.IgnoreCase); 
          System.Text.RegularExpressions.Regex regex7 = new System.Text.RegularExpressions.Regex(@"</p>", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
          System.Text.RegularExpressions.Regex regex8 = new System.Text.RegularExpressions.Regex(@"<p>", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
          = New new System.Text.RegularExpressions.Regex regex9 System.Text.RegularExpressions.Regex (@ "<[^>] *>", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
          HTML = regex1.Replace (HTML, "" ); // filter <script> </ script> tag
          html = regex2.Replace (html, "" ); // filter href = javascript: (<A>) property
          html = regex3.Replace (html, "_disibledevent =" ); // filter other controls on ... event
          html = regex4.Replace (html, "" ); // filter iframes.
          HTML = regex5.Replace (HTML, ""); // filter frameset
          HTML = regex6.Replace (html, ""); // filter frameset
          HTML = regex7.Replace (html, ""); // filter frameset
          HTML = regex8.Replace (HTML, "");// filter frameset
          HTML = regex9.Replace (HTML, "");
          html = html.Replace(" ", "");
          html = html.Replace("</strong>", "");
          html = html.Replace("<strong>", "");
          return html;
}

Reproduced in: https: //www.cnblogs.com/luofeng99/archive/2011/07/14/2177593.html

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Origin blog.csdn.net/weixin_30747253/article/details/94880569