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("note_external_dtd.xml");
document.write(xmlDoc.doctype.systemId);

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

源代码

动行结果