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代碼檢查很多遍都沒問題呀 !可還是沒效果

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
<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">&times;</span> </div> </body> </html>
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