<title>Document</title>
<style>
?*{margin:0;padding:0;}
?????.head{font-size:12px;padding:6px?0?0?10px;}
?????#login_box{width:300px;height:150px;background:#eee;
?????border:1px?solid?#ccc;position:absolute;left:50%;top:50%;margin-left:-150px;margin-top:-75px;display:none;}
?????#login_box?p{height:20px;border-bottom:1px?solid?#ccc;font-size:12px;padding:6px?0?0?5px;font-weight:bold;}
?????#close{width:14px;height:14px;background:url(close.png)?no-repeat;position:absolute;right:4px;top:6px;}
</style>
<script>
??????window.onload=function(){
?????? var?login_btn=document.getElementById('login'),
?????? ????login_box=document.getElementById('login_box'),
?????? ????close=document.getElementById('close');
?????? //?封裝添加事件監(jiān)聽程序
?????? //添加事件：addEventListener()?和?removeEventListener()
?????? //IE添加刪除事件處理程序 attachEvent和detachEvent
????????function?addEvent(ele,type,hander){
????????????if(ele.addEventListener){
????????????????ele.addEventListener(type,hander,false);
????????????}else?if(ele.attachEvent){
????????????????ele.attachEvent('on'+type,hander);
????????????}else{
????????????????ele['on'+type]=hander;
????????????}
???????????//?執(zhí)行代碼??
?????? }
????????//?顯示登錄層函數(shù)
?????? function?showLogin(){
?????? ????login_box.style.display='clock'
?????? //?執(zhí)行代碼
????????}
????????//?隱藏登錄層函數(shù)
????????function?hideLogin(){
????????????login_box.style.display='none'
??????????//?執(zhí)行代碼
????????}
????????//點(diǎn)擊登錄按鈕顯示登錄層?
????????addEvent(login_btn,'click',showLogin);
????????addEvent(close,'click',hideLogin);
????????//?執(zhí)行代碼
????????//點(diǎn)擊關(guān)閉按鈕隱藏登錄層
????????//?執(zhí)行代碼
??????}
</script>
</head>
<body>
<div?class="head">親，您好！<input?type="button"?value="登?錄"?id="login"></div>
<div?id="login_box">
<p>用戶登錄</p><span?id="close">×</span>
</div>
</body>
</html>
代碼檢查很多遍都沒問題呀 ！可還是沒效果
WenSen_
2017-10-17 16:27:25