js焦点图特效源码下载

2019-10-25 分类：Html+Css 作者：huanggr 阅读（1446）

js焦点图特效源码下载，焦点图点击切换，自动切换，免费下载

js焦点图特效源码如下所示：

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<!DOCTYPE HTML>
<html>
<head>
<title>please enter your title</title>
<meta charset="utf-8">
<meta name="Author" content="js焦点图特效源码下载">
<style type='text/css'>
*{ margin:0; padding:0;}
li{
list-style:none;
}
#banner{
width:730px;
height:454px;
margin:50px auto;
position:relative;
}
#banner .pic{
width:100%;
height:100%;
position:relative;
}
#banner .pic ul li{
position:absolute;
display:none;
}
#banner .tab{
width:148px;
height:20px;
position:absolute;
bottom:10px;
left:50%;
margin-left:-70px;
}
#banner .tab ul li{
width:18px;
height:18px;
background:#666;
border-radius:100%;
float:left;
margin:1px 3px;
color:#fff;
text-align:center;
line-height:18px;
font-family:'Microsoft yahei';
font-size:12px;
cursor:pointer;
}
#banner .tab ul li.on{
background:#f60;
}
#banner .btn{
display:none;
}
#banner .btn div{
width:30px;
height:60px;
background:rgba(0,0,0,0.3);
text-align:center;
line-height:60px;
color:#fff;
font-size:24px;
position:absolute;
top:50%;
margin-top:-30px;
cursor:pointer;
}
#leftBtn{
left:0;
}
#rightBtn{
right:0;
}
</style>
</head>
<body>

<div id="banner">
<div class="pic">
<ul>
<li style="display:block;"><a href=""><img src="img/1.jpg" /></a></li>
<li><a href=""><img src="img/2.jpg" /></a></li>
<li><a href=""><img src="img/3.jpg" /></a></li>
<li><a href=""><img src="img/4.jpg" /></a></li>
<li><a href=""><img src="img/5.jpg" /></a></li>
<li><a href=""><img src="img/6.jpg" /></a></li>
</ul>
</div>

<div class="tab">
<ul>
<li class="on">1</li><li>2</li><li>3</li><li>4</li><li>5</li><li>6</li>
</ul>
</div>

<div class="btn">
<div id="leftBtn"><</div>
<div id="rightBtn">></div>
</div>
</div>

<script type="text/javascript" src="js/jquery-1.12.1.min.js"></script>
<script type="text/javascript">
$(function(){

var $tabLi = $('#banner .tab li');
var $picLi = $('#banner .pic li');
var $btn = $('#banner .btn');
var $btnDiv = $('#banner .btn div');
var $banner = $('#banner');
var index = 0;
var timer;

$tabLi.hover(function(){
index = $(this).index();
fn();
});

$banner.hover(function(){
$btn.show();
clearInterval(timer);
},function(){
$btn.hide();
auto();
});

$btnDiv.click(function(){
var i = $(this).index();
if ( i )
{
index ++;
index %= $tabLi.length;
}
else
{
index --;
if(index<0)index = $tabLi.length-1;
}
fn();
}).mousedown(function(){
return false;
});

auto();
function auto(){
timer = setInterval(function(){
index ++;
index %= $tabLi.length;
fn();
},5000);
}
function fn(){
$tabLi.eq(index).addClass('on').siblings().removeClass('on');
$picLi.eq(index).stop(true).fadeIn().siblings().stop(true).fadeOut();
}
});
</script>
</body>
</html>