代码示例:(标识:xdom_replacedata)
<html>
<head>
<script type="text/javascript" src="/static/demo/html/js/loadxmldoc.js"> 
</script>
</head>
<body>

<script type="text/javascript">
xmlDoc=loadXMLDoc("/static/demo/xdom/books.xml");

var x=xmlDoc.getElementsByTagName("title")[0].childNodes[0];
document.write(x.nodeValue);
x.replaceData(0,8,"Hello");

document.write("<br />");
document.write(x.nodeValue);

</script>
</body>
</html>
运行结果: