代码示例:(标识:hdom_document_images_item)
<!DOCTYPE html>
<html>
<body>

<img id="img1" src="/static/demo/images/ct_htmltree.gif">
<img id="img2" src="/static/demo/images/dom_navigate.gif">

<p id="demo"></p>

<script>
document.getElementById("demo").innerHTML =
"第一幅图片的 id 是:" + document.images[0].id;
</script>

</body>
</html>
运行结果: