求一则过滤hmtl标签的正则表达式

[lmjob]

在发布的新闻内容中存在很多<table>……</table><div>……</div>等标签
但现在除了<font></font><p></p><img></img> 这些标签不过滤之外，
所有<></>都过滤掉，求该正则表达式，感谢！！

[albwangyang]

public static string gethtml(string html)
{
html = System.Web.HttpContext.Current.Server.HtmlDecode(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);
System.Text.RegularExpressions.Regex regex9 = new System.Text.RegularExpressions.Regex(@"<[^>]*>", System.Text.RegularExpressions.RegexOptions.IgnoreCase);
html = regex1.Replace(html, ""); //过滤<script></script>标记
html = regex2.Replace(html, ""); //过滤href=javascript: (<A>) 属性 网管网bitsCN.com
html = regex3.Replace(html, " _disibledevent="); //过滤其它控件的on...事件
html = regex4.Replace(html, ""); //过滤iframe
html = regex5.Replace(html, ""); //过滤frameset
html = regex6.Replace(html, ""); //过滤frameset
html = regex7.Replace(html, ""); //过滤frameset
html = regex8.Replace(html, ""); //过滤frameset
html = regex9.Replace(html, "");
html = html.Replace(" ", "");
html = html.Replace("</strong>", "");
html = html.Replace("<strong>", "");
html = html.Replace("</tbody>", "");
html = html.Replace("<tbody>", "");
html = html.Replace("</table>", "");
html = html.Replace("<table>", "");
html = html.Replace("</tr>", "");
html = html.Replace("<tr>", "");
html = html.Replace("</td>", "");
html = html.Replace("<td>", "");
System.Text.RegularExpressions.Regex regular = new System.Text.RegularExpressions.Regex("<(S*?)[^>]*>");
System.Text.RegularExpressions.MatchCollection replaceStr = regular.Matches(html);
foreach (System.Text.RegularExpressions.Match match in replaceStr)
{
html = html.Replace(match.ToString(), "");
}
html = html.IndexOf('<') > 0 ? html.Substring(0, html.IndexOf('<')) : html;
return html;
}

[lmjob]

关注的人，难道分给少了？

[十八道胡同]

最好有源字串 和你要结果