<style>

div {

    border: 1px solid black;

    width: 200px;

    height: 100px;

    overflow: scroll;

}

</style>

<p>演示了如何使用 addEventListener() 方法向 div 元素中添加 "onscroll" 事件</p>

<p>尝试滚动 div</p>

<div id="myDIV">In my younger and more vulnerable years my father gave me some advice that I've been turning over in my mind ever since.

<br><br>

'Whenever you feel like criticizing anyone,' he told me, just remember that all the people in this world haven't had the advantages that you've had.'</div>

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

<script>

document.getElementById("myDIV").addEventListener("scroll", myFunction);

function myFunction() {

    document.getElementById("demo").innerHTML = "你滚动了 div。";