当 <details> 元素在打开或关闭时执行 JavaScript - 在线编辑器

          <p>Open the details.</p>

<details ontoggle="myFunction()">
  <summary>Copyright 1999-2014.</summary>
  <p> - by Refsnes Data. All Rights Reserved.</p>
  <p>All content and graphics on this web site are the property of the company Refsnes Data.</p>
</details>

<p><strong>注意:</strong> 目前只有 Chrome, Safari 6+, 和 Opera 15+ 浏览器支持 details 元素和 ontoggle 属性。</p>

<script>
  function myFunction() {
    alert(" ontoggle 事件触发");
  }
</script>
        