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                        /DOM事件探秘

登錄窗彈不出來是為什么？

不知道具體哪里出了問題，希望有人可以詳細(xì)解釋一下

出世Sunny

2015-11-04

源自：DOM事件探秘 3-3

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2 回答

Y_du 回答被采納 +3 積分
2015-11-04

<!doctype?html>
<html>
<head>
????<meta?charset="UTF-8">
<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
????????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="block";
???????//?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?
????????//?執(zhí)行代碼
????????addEvent(login_btn,"click",showLogin);
????????//點(diǎn)擊關(guān)閉按鈕隱藏登錄層
????????//?執(zhí)行代碼
????????addEvent(close,"click",hideLogin);
??????}
</script>
</head>
<body>
<div>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>

window.onload=function(){ 這個(gè)function少了個(gè)}，在addEvent(close,"click",hideLogin);之后加上就好了。