在线运行代码 - 菜鸟教程

<!DOCTYPE html>
<html>
<head>
<script src="loadxmldoc.js.html"> 
</script>
</head>
<body>

<script>
xmlDoc=loadXMLDoc("books.xml");

x=xmlDoc.getElementsByTagName('book');

document.write(x[0].getAttribute('category'));
document.write("<br>");

x[0].removeAttribute('category');

document.write(x[0].getAttribute('category'));

</script>
</body>
</html>

源代码

动行结果