为啥我的就不能执行？
<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>无标题文档</title>
<!-- <script src="js/jquery-3.4.1.js"></script>-->
</head>
<body onLoad="obey()">
<input type="button" value="button" id="btn">
<script>
// $(document).ready(function(){
// alert("Hello world!");
// })
function show1()
{
alert(1);
}
var bnode = document.getElementById("btn");
bnode.addEventListener('click',show1,false);
// window.onload = obey();
</script>
</body>
</html>
