用jQuery实现一些导航条切换,显示隐藏,主要运用的技术有slideToggle( ),toggeClass( ),toggle( ):
代码如下:
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<!DOCTYPE html>
<html>
<head>
<meta charset= "utf-8" >
<title>导航条在项目中的应用</title>
<script language= "javascript" type= "text/javascript" src= "Jscript/jquery-1.4.2.min.js" ></script>
<script type= "text/javascript" >
$( function (){
$( ".tit" ).find( "span" ).click( function (){
$( this ).toggleClass( "closeBtn2" ).parent().next().slideToggle(); //实现内容隐藏显示,及图标的切换
}) ;
$( ".clsBot" ).click( function (){
$( this ).parent().find( "li:gt(4)" ).toggle(); //实现内容索引值大于4的隐藏或者显示
})
})
</script>
<style type= "text/css" >
*{ margin: 0;padding: 0;}
ul li{ list-style: none;}
.box{ width: 400px; margin: 100px auto; border: 1px solid #ddd;}
.tit{ background: #999; height: 30px; color: #fff; font-size: 14px; line-height: 30px; padding-left: 6px; position: relative;}
.closeBtn{ background: url( "Images/a2.gif" ) no-repeat 0 0; width: 7px; height: 8px; position: absolute; right: 10px; top: 10px; display: block; text-indent: -9999px; cursor: pointer;}
.closeBtn2{background: url( "Images/a1.gif" ) no-repeat 0 0;}
.content{padding: 6px;font-size: 12px; overflow: hidden; }
.content li{ float: left; width: 100px; height: 24px; }
.content li a{ color: #999;}
.content li a:hover{ color: red;}
.clsBot{ display: block; clear: both; background: url( "Images/a5.gif" ) no-repeat right 0; padding-right: 16px; float: right; width: 26px; cursor: pointer; color: blue;}
</style>
</head>
<body>
<div class= "box" >
<div class= "tit" >
<h2>图书分类</h2>
<span class= "closeBtn" >关闭</span>
</div>
<div class= "content" >
<ul>
<li><a href= "#" >小说</a><i> ( 1110 ) </i></li>
<li><a href= "#" >文艺</a><i> ( 230 ) </i></li>
<li><a href= "#" >青春</a><i> ( 1430 ) </i></li>
<li><a href= "#" >少儿</a><i> ( 1560 ) </i></li>
<li><a href= "#" >生活</a><i> ( 870 ) </i></li>
<li><a href= "#" >社科</a><i> ( 1460 ) </i></li>
<li><a href= "#" >管理</a><i> ( 1450 ) </i></li>
<li><a href= "#" >计算机</a><i> ( 1780 ) </i></li>
<li><a href= "#" >教育</a><i> ( 930 ) </i></li>
<li><a href= "#" >工具书</a><i> ( 3450 ) </i></li>
<li><a href= "#" >引进版</a><i> ( 980 ) </i></li>
<li><a href= "#" >其它类</a><i> ( 3230 ) </i></li>
</ul>
<span class= "clsBot" >简化</span>
</div>
</div>
</body>
</html>
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效果图: