<!DOCTYPE html><html>?? ?<head>?? ??? ?<meta charset="UTF-8">?? ??? ?<title>事件</title>?? ?</head>?? ?<body>?? ??? ?<div id="box">?? ??? ??? ?<input type="button" value="按鈕4" id="btn4"/>?? ??? ?</div>?? ??? ??? ??? ??? ??? ?<script>?? ??? ??? ??? ??? ???? ??? ?//html事件?? ??? ???? function showMsg(){?? ??? ??? ??? ?alert("hello");?? ??? ???? }?? ??? ???? //ie下的dom2級(jí)事件?? ??? ???? var btn4=document.getElementById("btn4");?? ??? ???? btn4.attachEvent('onclick',showMsg);?? ??? ?</script>?? ?</body></html>
幫忙看一下下面的attachEvent怎么不行
肖小波
2016-08-18 10:56:16
