代码示例:(标识:jsck_element_getattributenode_2)
<!DOCTYPE html>
<html>
<body>

<h1>Element 对象</h1>

<h2>getAttributeNode() 方法</h2>

<p>学习更多有关 <a id="myAnchor" href="/tags/dom_obj_attributes.html" target="_blank">Attr 对象</a> 知识。</p>

<p>点击按钮可显示上面链接的 target 属性节点的值。</p>

<button onclick="myFunction()">试一试</button>

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

<script>
function myFunction() {
  const element = document.getElementById("myAnchor");
  let text = element.getAttributeNode("target").value;
  document.getElementById("demo").innerHTML = text;
}
</script>

</body>
</html>
运行结果: