求大神幫我找錯(cuò)，新手找了好幾遍都找不到哪里錯(cuò)了。
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8"/>
<title>地狗購(gòu)物網(wǎng)——網(wǎng)頁(yè)定位導(dǎo)航效果</title>
<style>
??????? *{ margin:0;padding:0;}
?? ??? ?body{font-size:12px;line-height:1.7;}
?? ??? ?li {list-style:none;}
??????? #content{width:800px;margin:0 auto;padding:20px;}
??????? #content h1{color:#0088bb;}
??????? #content .item{padding:20px;margin-bottom:20px;border:1px dotted #0088bb;}
??????? #content .item h2{font-size:16px;font-weight:bold;border-bottom:2px solid #0088bb;margin-bottom:10px;}
??????? #content .item li{display:inline;margin-right:10px;}
??????? #content .item li a img{width:230px;height:230px;border:none;} #menu{position:fixed;top:100px;left:50%;margin-left:400px;width:50px;}
??????? #menu ul li a {display:block;margin:5px 0;font-size:14px;font-weight:bold;color:#333;width:80px;height:50px;line-height:50px;? text-decoration:none;text-align:center;}
??????? #menu ul li a:hover,#menu ul li a.current{color: #fff;background: #0088bb;}
??????? * html, * html body{background-image: url(about:blank);background-attachment: fixed;}
??????? * html #menu{position: absolute;bottom: auto;top:expression(100+((e=document.documentElement.scrollTop)?e:document.body.scrollTop)+'px');}
</style>
<script src="http://libs.baidu.com/jquery/1.10.2/jquery.js"></script>
<script>
??? $(document).ready(function(){
??????? $(window).scroll(function(){
??????????? //滾動(dòng)條發(fā)生滾動(dòng)時(shí)，要獲取相應(yīng)的值。
??????????? var top=$(document).scrollTop();
??????????? var items=$('#content').find('.item');
??????????? var currentId="";
?? ??? ??? ?var menu=$('#menu');
??????????? //請(qǐng)補(bǔ)充此處代碼，讓導(dǎo)航菜單實(shí)現(xiàn)在滾動(dòng)條滾動(dòng)的時(shí)候自動(dòng)設(shè)置焦點(diǎn)
??????????? items.each(function(){
??????????????? var m=$(this);
??????????????? var itemTop=m.offset().top;
??????????????? if(top>itemTop){
??????????????????? currentId="#"+m.attr('id')
??????????????? }else{
?????????????????? return flase;
??????????????? }
??????????? });
??????????? //給相應(yīng)樓層的a 設(shè)置 current，取消其他鏈接的current
??????????? var currentLink=menu.find('.current');
??????????? if(currentId&¤tLink.attr('href')!=currentId){
??????????????? currentLink.removeClass('current');
??????????????? menu.find('[href='+currentId+']').addClass('current');
??????????? }
??????? });
??? });?? ?
</script>
</head>
<body>
<div id="menu">
<ul>
<!--運(yùn)用錨點(diǎn)，實(shí)現(xiàn)導(dǎo)航定位。-->
<li><a href="#item1" class="current">1F 男裝</a></li>
<li><a href="#item2">2F 女裝</a></li>
<li><a href="#item3">3F 美妝</a></li>
<li><a href="#item4">4F 數(shù)碼</a></li>
<li><a href="#item5">5F 母嬰</a></li>
</ul>
</div>
<div id="content">
<h1>地狗購(gòu)物網(wǎng)</h1>
<div id="item1" class="item">
<h2>1F 男裝</h2>
<ul>
<li><a href="#"><img src="http://img1.sycdn.imooc.com//53660fce0001111903990422.jpg" alt=""/></a></li>
<li><a href="#"><img src="http://img1.sycdn.imooc.com//53660fce0001111903990422.jpg" alt=""/></a></li>
<li><a href="#"><img src="http://img1.sycdn.imooc.com//53660fce0001111903990422.jpg" alt=""/></a></li>
<li><a href="#"><img src="http://img1.sycdn.imooc.com//53660fce0001111903990422.jpg" alt=""/></a></li>
<li><a href="#"><img src="http://img1.sycdn.imooc.com//53660fce0001111903990422.jpg" alt=""/></a></li>
<li><a href="#"><img src="http://img1.sycdn.imooc.com//53660fce0001111903990422.jpg" alt=""/></a></li>
<li><a href="#"><img src="http://img1.sycdn.imooc.com//53660fce0001111903990422.jpg" alt=""/></a></li>
<li><a href="#"><img src="http://img1.sycdn.imooc.com//53660fce0001111903990422.jpg" alt=""/></a></li>
<li><a href="#"><img src="http://img1.sycdn.imooc.com//53660fce0001111903990422.jpg" alt=""/></a></li>
</ul>
</div>
<div id="item2" class="item">
<h2>2F 女裝</h2>
<ul>
<li><a href="#"><img src="http://img1.sycdn.imooc.com//5366104c0001e5c403990422.jpg" alt=""/></a></li>
<li><a href="#"><img src="http://img1.sycdn.imooc.com//5366104c0001e5c403990422.jpg" alt=""/></a></li>
<li><a href="#"><img src="http://img1.sycdn.imooc.com//5366104c0001e5c403990422.jpg" alt=""/></a></li>
<li><a href="#"><img src="http://img1.sycdn.imooc.com//5366104c0001e5c403990422.jpg" alt=""/></a></li>
<li><a href="#"><img src="http://img1.sycdn.imooc.com//5366104c0001e5c403990422.jpg" alt=""/></a></li>
<li><a href="#"><img src="http://img1.sycdn.imooc.com//5366104c0001e5c403990422.jpg" alt=""/></a></li>
<li><a href="#"><img src="http://img1.sycdn.imooc.com//5366104c0001e5c403990422.jpg" alt=""/></a></li>
<li><a href="#"><img src="http://img1.sycdn.imooc.com//5366104c0001e5c403990422.jpg" alt=""/></a></li>
<li><a href="#"><img src="http://img1.sycdn.imooc.com//5366104c0001e5c403990422.jpg" alt=""/></a></li>
</ul>
</div>
<div id="item3" class="item">
<h2>3F 美妝</h2>
<ul>
<li><a href="#"><img src="http://img1.sycdn.imooc.com//536610820001cf5b03990422.jpg" alt=""/></a></li>
<li><a href="#"><img src="http://img1.sycdn.imooc.com//536610820001cf5b03990422.jpg" alt=""/></a></li>
<li><a href="#"><img src="http://img1.sycdn.imooc.com//536610820001cf5b03990422.jpg" alt=""/></a></li>
<li><a href="#"><img src="http://img1.sycdn.imooc.com//536610820001cf5b03990422.jpg" alt=""/></a></li>
<li><a href="#"><img src="http://img1.sycdn.imooc.com//536610820001cf5b03990422.jpg" alt=""/></a></li>
<li><a href="#"><img src="http://img1.sycdn.imooc.com//536610820001cf5b03990422.jpg" alt=""/></a></li>
<li><a href="#"><img src="http://img1.sycdn.imooc.com//536610820001cf5b03990422.jpg" alt=""/></a></li>
<li><a href="#"><img src="http://img1.sycdn.imooc.com//536610820001cf5b03990422.jpg" alt=""/></a></li>
<li><a href="#"><img src="http://img1.sycdn.imooc.com//536610820001cf5b03990422.jpg" alt=""/></a></li>
</ul>
</div>
<div id="item4" class="item">
<h2>4F 數(shù)碼</h2>
<ul>
<li><a href="#"><img src="http://img1.sycdn.imooc.com//536610ac00012df703990422.jpg" alt=""/></a></li>
<li><a href="#"><img src="http://img1.sycdn.imooc.com//536610ac00012df703990422.jpg" alt=""/></a></li>
<li><a href="#"><img src="http://img1.sycdn.imooc.com//536610ac00012df703990422.jpg" alt=""/></a></li>
<li><a href="#"><img src="http://img1.sycdn.imooc.com//536610ac00012df703990422.jpg" alt=""/></a></li>
<li><a href="#"><img src="http://img1.sycdn.imooc.com//536610ac00012df703990422.jpg" alt=""/></a></li>
<li><a href="#"><img src="http://img1.sycdn.imooc.com//536610ac00012df703990422.jpg" alt=""/></a></li>
<li><a href="#"><img src="http://img1.sycdn.imooc.com//536610ac00012df703990422.jpg" alt=""/></a></li>
<li><a href="#"><img src="http://img1.sycdn.imooc.com//536610ac00012df703990422.jpg" alt=""/></a></li>
<li><a href="#"><img src="http://img1.sycdn.imooc.com//536610ac00012df703990422.jpg" alt=""/></a></li>
</ul>
</div>
<div id="item5" class="item">
<h2>5F 母嬰</h2>
<ul>
<li><a href="#"><img src="http://img1.sycdn.imooc.com//536610cd0001f34603990422.jpg" alt=""/></a></li>
<li><a href="#"><img src="http://img1.sycdn.imooc.com//536610cd0001f34603990422.jpg" alt=""/></a></li>
<li><a href="#"><img src="http://img1.sycdn.imooc.com//536610cd0001f34603990422.jpg" alt=""/></a></li>
<li><a href="#"><img src="http://img1.sycdn.imooc.com//536610cd0001f34603990422.jpg" alt=""/></a></li>
<li><a href="#"><img src="http://img1.sycdn.imooc.com//536610cd0001f34603990422.jpg" alt=""/></a></li>
<li><a href="#"><img src="http://img1.sycdn.imooc.com//536610cd0001f34603990422.jpg" alt=""/></a></li>
<li><a href="#"><img src="http://img1.sycdn.imooc.com//536610cd0001f34603990422.jpg" alt=""/></a></li>
<li><a href="#"><img src="http://img1.sycdn.imooc.com//536610cd0001f34603990422.jpg" alt=""/></a></li>
<li><a href="#"><img src="http://img1.sycdn.imooc.com//536610cd0001f34603990422.jpg" alt=""/></a></li>
</ul>
</div>
</div>
</body>
</html>
2016-04-07
false 拼寫(xiě)錯(cuò)誤（活用控制臺(tái)，一般語(yǔ)法錯(cuò)誤會(huì)有提示）