效果：点击链接
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<script src="http://code.jquery.com/jquery-1.9.1.min.js"></script>
<style>
* {
margin: 0;
padding: 0;
}
.clear::after {
content: '';
display: block;
clear: both;
}
.layout {
width: 1000px;
margin: 0 auto;
}
.carousel {
width: 1000px;
height: 500px;
background-color: #DDD;
overflow: hidden;
position: relative;
}
li {
list-style: none;
}
.img-ct {
position: relative;
}
.img-ct li {
width: 1000px;
height: 500px;
display: none;
position: absolute;
}
.arrow {
position: absolute;
top: 50%;
margin-top: -25px;
width: 30px;
height: 50px;
background-color: rgba(0, 0, 0, 1);
text-decoration: none;
color: #FFF;
font-size: 20px;
line-height: 50px;
text-align: center;
border-radius: 5px;
opacity: 0.5;
}
.arrow:hover {
opacity: 0.8;
}
.arrow-pro {
left: 10px;
}
.arrow-next {
right: 10px;
}
.bar {
display: block;
text-align: center;
position: absolute;
bottom: 30px;
width: 100%;
font-size: 0px;
}
.bar-ct {
display: inline-block;
padding: 0;
}
.bar-ct>li {
display: inline-block;
width: 150px;
height: 75px;
margin: 0px 10px;
border: 1px solid #EEE;
}
.active {
box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.5), 0 6px 20px 0 rgba(0, 0, 0, 0.6);
}
.bar-ct img {
width: 150px;
height: 75px;
}
</style>
</head>
<body>
<div class="layout">
<div class="carousel">
<ul class="img-ct clear">
<li>
<a href="javaScript:void(0)"></a>
</li>
<li>
<a href="javaScript:void(0)"></a>
</li>
<li>
<a href="javaScript:void(0)"></a>
</li>
<li>
<a href="javaScript:void(0)"></a>
</li>
</ul>
<a href="javaScript:void(0)" class="arrow-pro arrow">
<</a>
<a href="javaScript:void(0)" class="arrow-next arrow">></a>
<div class="bar">
<ul class="bar-ct clear">
<li class="active">
<a href="javaScript:void(0)"><img src="" alt=""></a>
</li>
<li>
<a href="javaScript:void(0)"><img src="" alt=""></a>
</li>
<li>
<a href="javaScript:void(0)"><img src="" alt=""></a>
</li>
<li>
<a href="javaScript:void(0)"><img src="" alt=""></a>
</li>
</ul>
</div>
</div>
</div>
<script>
var $imgct = $('.img-ct'),
$barli = $('.bar-ct li'),
$firstImg = $imgct.find('li').first(),
$lastImg = $imgct.find('li').last(),
imgWidth = $firstImg.width(),
isAnimate = false
barliGetImg()
$imgct.find('li').eq('0').css('display', 'block')
$imgct.width(imgWidth * $imgct.find('li').length)
carouselindex = 0;
autoplay()
$('.arrow-next').on('click', function () { //下一张
turn(carouselindex + 1)
})
$('.arrow-pro').on('click', function () { //上一张
turn(carouselindex - 1)
})
$('.bar-ct').find('li').on('click', function () { //选择切换
var barindex = ($(this).index())
console.log(barindex)
turn(barindex)
})
function turn(idx) { //切换函数，根据图片下标切换
if (isAnimate) {
return
}
if (carouselindex === idx) {
return
}
isAnimate = true;
$imgct.find('li').eq(carouselindex).fadeOut(500)
if (idx < 0) {
idx = $imgct.find('li').length - 1
}
if (idx > $imgct.find('li').length - 1) {
idx = 0
}
$imgct.find('li').eq(idx).fadeIn(500, function () {
carouselindex = idx
$barli.removeClass('active')
$barli.eq(carouselindex).addClass('active')
isAnimate = false;
})
}
function barliGetImg() { //给下面的滚动栏缩略预览图
$imgct.find('li').each(function () {
$barli.eq($(this).index()).find('img')
.attr('src', $(this).find('img').attr('src'))
})
}
function autoplay() { 自动播放
clock = setInterval('turn(carouselindex+1)', 2000)
}
</script>
</body>
</html>
组件化API实现：
var Carousel = (function () { //声明构造函数
function _Carousel($ct) {
this.$ct = $ct //指定容器
this.init()
this.bind() //事件执行
}
_Carousel.prototype = {
init: function () { //建立变量
this.$imgct = this.$ct.find('.img-ct')
this.$barli = this.$ct.find('.bar-ct li')
this.$firstImg = this.$imgct.find('li').first()
this.$lastImg = this.$imgct.find('li').last()
this.imgWidth = this.$firstImg.width()
this.isAnimate = false
},
bind: function () { //事件函数
this.barliGetImg()
var _this = this
console.log(this.$ct.attr('id'))
this.$imgct.find('li').eq('0').css('display', 'block')
this.$imgct.width(this.imgWidth * this.$imgct.find('li').length)
this.carouselindex = 0;
this.autoplay() //执行自动播放
this.$ct.find('.arrow-next').on('click', function () {
_this.turn(_this.carouselindex + 1)
})
this.$ct.find('.arrow-pro').on('click', function () {
_this.turn(_this.carouselindex - 1)
})
this.$ct.find('.bar-ct').find('li').on('click', function () {
var barindex = ($(this).index())
console.log(barindex)
_this.turn(barindex)
})
},
turn: function (idx) { //切换功能，能根据图片下标idx切换
var _this = this
if (this.isAnimate) {
return
}
if (this.carouselindex === idx) {
return
}
this.isAnimate = true;
this.$imgct.find('li').eq(this.carouselindex).fadeOut(500)
if (idx < 0) {
idx = this.$imgct.find('li').length - 1
}
if (idx > this.$imgct.find('li').length - 1) {
idx = 0
}
this.$imgct.find('li').eq(idx).fadeIn(500, function () {
_this.carouselindex = idx
_this.$barli.removeClass('active')
_this.$barli.eq(_this.carouselindex).addClass('active')
_this.isAnimate = false;
})
},
barliGetImg: function () { //给下面滚动栏设置缩略图
var _this = this
this.$imgct.find('li').each(function () {
_this.$barli.eq($(this).index()).find('img')
.attr('src', $(this).find('img').attr('src'))
})
},
autoplay: function () { //自动播放功能
var _this = this
clock = setInterval(function () {
_this.turn(_this.carouselindex + 1)
}, 2000)
}
}
return {
init:function($ct){ //API接口
$ct.each(function(index, node){
new _Carousel($(node));
})
}
}
})()
Carousel.init($('.carousel')) //调用API
