newregex过滤

⑴ asp.net导出excel后，文件内容是<div></div>

导出的字符串用这个方法过滤一下
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);

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

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>", "");

return html;

}

⑵ c#如何过滤掉html的img标签

privatestringFilterHTML(stringhtml)
{
System.Text.RegularExpressions.Regexregex1=
newSystem.Text.RegularExpressions.Regex(@"<script[sS]+</script*>",
System.Text.RegularExpressions.RegexOptions.IgnoreCase);
System.Text.RegularExpressions.Regexregex2=
newSystem.Text.RegularExpressions.Regex(@"href*=*[sS]*script*:",
System.Text.RegularExpressions.RegexOptions.IgnoreCase);
System.Text.RegularExpressions.Regexregex3=
newSystem.Text.RegularExpressions.Regex(@"no[sS]*=",
System.Text.RegularExpressions.RegexOptions.IgnoreCase);
System.Text.RegularExpressions.Regexregex4=
newSystem.Text.RegularExpressions.Regex(@"<iframe[sS]+</iframe*>",
System.Text.RegularExpressions.RegexOptions.IgnoreCase);
System.Text.RegularExpressions.Regexregex5=
newSystem.Text.RegularExpressions.Regex(@"<frameset[sS]+</frameset*>",
System.Text.RegularExpressions.RegexOptions.IgnoreCase);
System.Text.RegularExpressions.Regexregex6=
newSystem.Text.RegularExpressions.Regex(@"<img[^>]+>",
System.Text.RegularExpressions.RegexOptions.IgnoreCase);
System.Text.RegularExpressions.Regexregex7=
newSystem.Text.RegularExpressions.Regex(@"</p>",
System.Text.RegularExpressions.RegexOptions.IgnoreCase);
System.Text.RegularExpressions.Regexregex8=
newSystem.Text.RegularExpressions.Regex(@"<p>",
System.Text.RegularExpressions.RegexOptions.IgnoreCase);
System.Text.RegularExpressions.Regexregex9=
newSystem.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
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=Regex.Replace(html,"[f

	v]","");//过滤回车换行制表符
returnhtml;
}