<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>无标题文档</title>
</head>
<body>
<div>
javascript
<p>javascript</p>
<div>jQuery</div>
<h5>PHP</h5>
</div>
<script type="text/javascript">
var x=document.getElementsByTagName("div")[0].childNodes;
for(i in x){
document.write(x[i].nodeName+x[i].nodeType+x[i].nodeValue+"<br>")
}
</script>
</body>
</html>结果是这样的javascriptjavascriptjQueryPHP#text3 javascript P1null#text3 DIV1null#text3 H51null#text3 NaNNaN
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