去除HTML代码中所有标签的两种方法_ASP教程

去除HTML代码中所有标签

复制代码代码如下:

<%
'******************************
'函数：RemoveHTML_A(strText)
'参数：strText，待处理的字符串
'作者：阿里西西
'日期：2007/7/12
'描述：去除HTML代码中所有标签
'示例：<%=RemoveHTML_A("欢迎光临阿里西西")%>
'******************************
Function RemoveHTML_A(strText)
 Dim nPos1
 Dim nPos2

 nPos1 = InStr(strText, "<")
 Do While nPos1>0
 nPos2 = InStr(nPos1+1, strText, ">")
 If nPos2>0 Then
 strText = Left(strText, nPos1 - 1) & Mid(strText, nPos2 + 1)
 Else
 Exit Do
 End If
 nPos1 = InStr(strText, "<")
 Loop

 RemoveHTML_A = strText
End Function
%>

去除HTML代码中所有标签之二

复制代码代码如下:

<%
'******************************
'函数：RemoveHTML_B(strText)
'参数：strText，待处理的字符串
'作者：阿里西西
'日期：2007/7/12
'描述：去除HTML代码中所有标签
'示例：<%=RemoveHTML_B("欢迎光临阿里西西")%>
'******************************
Function RemoveHTML_B( strText )
Dim RegEx

Set RegEx = New RegExp

RegEx.Pattern = "<[^>]*>"
RegEx.Global = True

RemoveHTML_B = RegEx.Replace(strText, "")
End Function
%>

去除HTML代码中所有标签之三

复制代码代码如下:

<%
'******************************
'函数：RemoveHTML_C(strText)
'参数：strText，待处理的字符串
'作者：阿里西西
'日期：2007/7/12
'描述：去除HTML代码中所有标签
'示例：<%=RemoveHTML_C("欢迎光临阿里西西")%>
'******************************
Function RemoveHTML_C( strText )
 Dim TAGLIST
 TAGLIST = ";!--;!DOCTYPE;A;ACRONYM;ADDRESS;APPLET;AREA;B;BASE;BASEFONT;" &_
 "BGSOUND;BIG;BLOCKQUOTE;BODY;BR;BUTTON;CAPTION;CENTER;CITE;CODE;" &_
 "COL;COLGROUP;COMMENT;DD;DEL;DFN;DIR;DIV;DL;DT;EM;EMBED;FIELDSET;" &_
 "FONT;FORM;FRAME;FRAMESET;HEAD;H1;H2;H3;H4;H5;H6;HR;HTML;I;IFRAME;IMG;" &_
 "INPUT;INS;ISINDEX;KBD;LABEL;LAYER;LAGEND;LI;LINK;LISTING;MAP;MARQUEE;" &_
 "MENU;META;NOBR;NOFRAMES;NOSCRIPT;OBJECT;OL;OPTION;P;PARAM;PLAINTEXT;" &_
 "PRE;Q;S;SAMP;SCRIPT;SELECT;SMALL;SPAN;STRIKE;STRONG;STYLE;SUB;SUP;" &_
 "TABLE;TBODY;TD;TEXTAREA;TFOOT;TH;THEAD;TITLE;TR;TT;U;UL;VAR;WBR;XMP;"

 Const BLOCKTAGLIST = ";APPLET;EMBED;FRAMESET;HEAD;NOFRAMES;NOSCRIPT;OBJECT;SCRIPT;STYLE;"

 Dim nPos1
 Dim nPos2
 Dim nPos3
 Dim strResult
 Dim strTagName
 Dim bRemove
 Dim bSearchForBlock

 nPos1 = InStr(strText, "<")
 Do While nPos1 > 0
 nPos2 = InStr(nPos1 + 1, strText, ">")
 If nPos2 > 0 Then
 strTagName = Mid(strText, nPos1 + 1, nPos2 - nPos1 - 1)
 strTagName = Replace(Replace(strTagName, vbCr, " "), vbLf, " ")

 nPos3 = InStr(strTagName, " ")
 If nPos3 > 0 Then
 strTagName = Left(strTagName, nPos3 - 1)
 End If

 If Left(strTagName, 1) = "/" Then
 strTagName = Mid(strTagName, 2)
 bSearchForBlock = False
 Else
 bSearchForBlock = True
 End If

 If InStr(1, TAGLIST, ";" & strTagName & ";", vbTextCompare) > 0 Then
 bRemove = True
 If bSearchForBlock Then
 If InStr(1, BLOCKTAGLIST, ";" & strTagName & ";", vbTextCompare) > 0 Then
 nPos2 = Len(strText)
 nPos3 = InStr(nPos1 + 1, strText, "</" & strTagName, vbTextCompare)
 If nPos3 > 0 Then
 nPos3 = InStr(nPos3 + 1, strText, ">")
 End If

 If nPos3 > 0 Then
 nPos2 = nPos3
 End If
 End If
 End If
 Else
 bRemove = False
 End If

 If bRemove Then
 strResult = strResult & Left(strText, nPos1 - 1)
 strText = Mid(strText, nPos2 + 1)
 Else
 strResult = strResult & Left(strText, nPos1)
 strText = Mid(strText, nPos1 + 1)
 End If
 Else
 strResult = strResult & strText
 strText = ""
 End If

 nPos1 = InStr(strText, "<")
 Loop
 strResult = strResult & strText

 RemoveHTML_C = strResult
End Function
%>