<div id="guoDiv">
<span>1</span>
<span>2</span>
<span>3</span>
</div>
var oDiv = document.getElementById("guoDiv");
var deepList = oDiv.cloneNode(true); //拷貝子節點
alert(deepList.childNodes.length); //3或7(兼容性問題,所以結果不一樣)
var showList = oDiv.cloneNode(false); //只拷貝當前元素的引用
alert(showList.childNodes.length); //0
