正则表达式，去除所有HTML标签
protected string str = "<table><tr><td>sdasasdsdd</td></tr></table><br><p>sds</p><img id='img1' src='http://www.baidu.com/img/baidu_logo.gif' width='100' height='50' alt=''>aaassss<br><img src='http://www.baidu.com/img/baidu_logo.gif' width='100' height='50' alt=''> 说是道 ";
protected void Page_Load(object sender, EventArgs e)
{
//string regexstr = @"<[^>]*>"; //去除所有的标签
//@"<script[^>]*?>.*?</script >" //去除所有脚本，中间部分也删除
// string regexstr = @"<img[^>]*>"; //去除图片的正则
// string regexstr = @"<(?!br).*?>"; //去除所有标签，只剩br
// string regexstr = @"<table[^>]*?>.*?</table>"; //去除table里面的所有内容
string regexstr = @"<(?!img|br|p|/p).*?>"; //去除所有标签，只剩img,br,p
str = Regex.Replace(str, regexstr, string.Empty, RegexOptions.IgnoreCase);
}
Dim myRegExp, ResultString
Set myRegExp = New RegExp
myRegExp.Global = True
myRegExp.Pattern = re
ResultString = myRegExp.Replace(content, "" )
ExecReg = ResultString
end function
function DecodeFilter(html)
html = LCase (html)
' 去除所有客户端脚本javascipt,vbscript,jscript,js,vbs,event,
html = ExecReg( " </?script[^>]*> " , html)
html = ExecReg( " (javascript|jscript|vbscript|vbs): " , html)
html = ExecReg( " on(mouse|exit|error|click|key) " , html)
html = ExecReg( " &# " , html)
' 去除表格<table><tr><td><th><a><p><img><div>
html = ExecReg( " </?table[^>]*> " , html)
html = ExecReg( " </?tr[^>]*> " , html)
html = ExecReg( " </?th[^>]*> " , html)
html = ExecReg( " </?td[^>]*> " , html)
html = ExecReg( " </?a[^>]*> " , html)
html = ExecReg( " </?p[^>]*> " , html)
html = ExecReg( " </?img[^>]*> " , html)
html = ExecReg( " </?div[^>]*> " , html)
html = ExecReg( " </?ul[^>]*> " , html)
html = ExecReg( " </?li[^>]*> " , html)
html = ExecReg( " </?tbody[^>]*> " , html)
html = ExecReg( " </?h1[^>]*> " , html)
html = ExecReg( " </?h2[^>]*> " , html)
html = ExecReg( " </?h3[^>]*> " , html)
html = ExecReg( " </?h4[^>]*> " , html)
html = ExecReg( " </?h5[^>]*> " , html)
html = ExecReg( " </?h6[^>]*> " , html)
html = ExecReg( " </?b[^>]*> " , html)
html = ExecReg( " </?strong[^>]*> " , html)
' 去除样式类class=""
html = ExecReg( " (<[^>]+) class=[^ |^>]*([^>]*>) " , html)
' 去除样式style=""
html = ExecReg( " (<[^>]+) style=""[^""]*""([^>]*>) " , html)
' 去除XML<?xml>
html = ExecReg( " </?xml[^>]*> " , html)
' 去除命名空间<o:p></o:p>
html = ExecReg( " </?[a-z]+:[^>]*> " , html)
' 去除字体<font></font>
html = ExecReg( " </?font[^>]*> " , html)
' 去除字幕<marquee></marquee>
html = ExecReg( " </?marquee[^>]*> " , html)
' 去除对象<object><param><embed></object>
html = ExecReg( " </?object[^>]*> " , html)
html = ExecReg( " </?param[^>]*> " , html)
html = ExecReg( " </?embed[^>]*> " , html)
DecodeFilter = html
end function
Dim RegEx
Set RegEx = New RegExp
RegEx.Pattern = "<[^>]*>"
RegEx.Global = True
RemoveHTML = RegEx.Replace(strText, "")
End Function
dim re
Set re=new RegExp
re.IgnoreCase =true
re.Global=True
re.Pattern="(/<.[^/<]*/>)"
str=re.replace(str," ")
re.Pattern="(/<//[^/<]*/>)"
str=re.replace(str," ")
str=replace(str," ","")
str=replace(str," ","")
nohtml=str
set re=nothing
end function
