8.1 js addEventListener js给div添加事件 

<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>test addEventListener</title>
</head>
<body>

<button id="myBtn">click me</button>
<p id="demo">

<script>
document.getElementById("myBtn").addEventListener("click", onClick);
function onClick() 
{
    document.getElementById("demo").innerHTML = "Hello World";
}
</script>
</body>
</html>
posted @ 2023-04-06 10:12  盘思动  阅读(97)  评论(0)  编辑  收藏  举报