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cloneNode Method

DHTML文档教程

Copies a reference to the object from the document hierarchy.

What's New for Microsoft® Internet Explorer 6

This method applies to the attribute object as of Internet Explorer 6.

dhtml语法

oClone = object.cloneNode( [bCloneChildren])

Parameters

bCloneChildren Optional. Booleanthat specifies one of the following values:
falseDefault. Cloned objects do not include childnodes.
truecloned objects include childnodes.

Return Value

Returns燼 reference to the newly created node.

Remarks

The cloneNode method copies an object, attributes, and, if specified, the childNodes.

A collection is returned when referring to the ID of a cloned element.

The cloneNode method will not work on an iframe directly. you must call it through the all collection. The following example demonstrates how to call cloneNode on an IFRAME.

<HTML>
<SCRIPT>
function fnBegin(){
var fr = document.all.oFrame.cloneNode();
alert(document.body.innerHTML);
}
</SCRIPT>
<BODY onload="fnBegin()">
<IFRAME id="oFrame" src="about:blank"
style="border:1px solid black; position:absolute; top:20px; left:30px;
width:350px; height:300px;"></IFRAME>
</BODY>
</HTML>

DHTML代码范例

<SCRIPT>
function fnClone(){
/* the 'true' possible value specifies to clone
the childNodes as well.
*/
var oCloneNode = oList.cloneNode(true);
/* When the cloned node is added,
'oList' becomes a collection.
*/
document.body.insertBefore(oCloneNode);
}
</SCRIPT>
<UL ID="oList">
<LI>List node 1
<LI>List node 2
<LI>List node 3
<LI>List node 4
</UL>
<INPUT type="button" value="Clone List" onclick="fnClone()">

是否符合公共标准

This method is defined in World Wide Web Consortium (W3C) Document Object Model (DOM) Level 1 Non-Microsoft link.

Applies To

A, ACRONYM, ADDRESS, APPLET, AREA, attribute, B, BASE, BASEFONT, BDO, 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, hn, HR, HTML, I, IFRAME, IMG, INPUT type=button, INPUT type=checkbox, INPUT type=file, INPUT type=hidden, INPUT type=image, INPUT type=password, INPUT type=radio, INPUT type=reset, INPUT type=submit, INPUT type=text, INS, KBD, LABEL, LEGEND, LI, LINK, LISTING, MAP, MARQUEE, MENU, nextID, OBJECT, OL, OPTION, P, PLAINTEXT, PRE, Q, S, SAMP, SCRIPT, SELECT, SMALL, SPAN, STRIKE, STRONG, SUB, SUP, TABLE, TBODY, TD, TEXTAREA, TFOOT, TH, THEAD, TITLE, TR, TT, U, UL, VAR, XMP

更多语法参考

appendchild, removenode, replacenode, swapNode