简易呼吸轮播图

简易呼吸轮播图

一个叫做简易呼吸的轮播图~~~~

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<html>
<head>
<meta charset="UTF-8">
<title>简易呼吸轮播图</title>
<style type="text/css">
*{
margin: 0px;
padding: 0px;
}
.fade-box{
width: 900px;
height: 540px;
border: 1px solid #000;
margin: 100px auto;
position: relative;
}
.fade-box ul{
list-style: none;
}
.fade-box ul li{
width: 900px;
height: 540px;
position: absolute;
top:0px;
left:0px;
display: none;
}
.fade-box ul li img{
width: 100%;
height:100%;
}
.fade-box ul li.current{
display: block;
}
.fade-box .circle{
position: absolute;
bottom:20px;
width:200px;
height: 30px;
left:50%;
margin-left:-100px;
}
.fade-box .circle ol{
list-style: none;
}
.fade-box .circle ol li{
float: left;
width: 20px;
height: 20px;
border-radius: 20px;
margin-right: 30px;
background: #ccc;
}
.fade-box .circle ol .current{
background:skyblue
}
.fade-box .fade-btn a{
display: block;
width: 40px;
height: 80px;
position: absolute;
font-size: 30px;
color: #fff;
background: rgba(0,0,0,0.7);
line-height: 80px;
text-decoration: none;
top:50%;
margin-top: -40px;
text-align: center;
}
.fade-box .fade-btn a:nth-child(1){
left:0px;
}
.fade-box .fade-btn a:nth-child(2){
right:0px;
}
</style>
</head>
<body>
<div class="fade-box">
<ul>
<li><a href="javascript:void(0);"><img src="http://opfmdske3.bkt.clouddn.com/avatar.jpg" alt=""></a></li>
<li><a href="javascript:void(0);"><img src="http://opfmdske3.bkt.clouddn.com/3c56f44e251f95ca3f1ef39dc1177f3e6609528b.jpg" alt=""></a></li>
<li><a href="javascript:void(0);"><img src="http://opfmdske3.bkt.clouddn.com/110G31K5-6.jpg" alt=""></a></li>
<li><a href="javascript:void(0);"><img src="http://opfmdske3.bkt.clouddn.com/110G31K5-6.jpg" alt=""></a></li>
</ul>
<div class="btn">
<a href="javascript:void(0);">&lt;</a>
<a href="javascript:void(0);">&gt;</a>
</div>
<div class="circle">
<ol>
<li></li>
<li></li>
<li></li>
<li></li>
</ol>
</div>
</div>
</body>
<script src="https://cdn.bootcss.com/jquery/3.1.1/jquery.js"></script>
<script>
$(function() {
var bannerImgs = $('.fade-box ul li');
var circles = $('.fade-box .circle ol li');
var leftBtn = $('.fade-box .btn a:eq(0)');
var rightBtn = $('.fade-box .btn a:eq(1)');
var index = 0;
circles.eq(0).addClass('current');
bannerImgs.eq(0).fadeIn();
//判断方向
function runDir(dir){
if (dir == 1) {
if (bannerImgs.is(':animated')) {
return;
}
bannerImgs.eq(index).fadeOut();
index++;
if (index>bannerImgs.length-1){
index = 0;
}
bannerImgs.eq(index).fadeIn();
circles.eq(index).addClass('current').siblings().removeClass('current');
}else if (dir == 0) {
if (bannerImgs.is(':animated')) {
return;
}
bannerImgs.eq(index).fadeOut();
index--;
if (index<0){
index = bannerImgs.length-1;
}
bannerImgs.eq(index).fadeIn();
circles.eq(index).addClass('current').siblings().removeClass('current');
}else{
throw '请填写正确参数';
}
}
rightBtn.click(function () {
runDir(1);
});
leftBtn.click(function () {
runDir(0);
});
circles.mouseenter(function () {
if (bannerImgs.is(":animated")) {
return;
}
bannerImgs.eq(index).fadeOut();
index = $(this).index();
bannerImgs.eq(index).fadeIn();
circles.eq(index).addClass('current').siblings().removeClass('current');
})
$('.fade-box').mouseenter(function () {
clearInterval(timer);
});
$('.fade-box').mouseleave(function () {
timer = setInterval(function () {
return runDir(1);
},1000)
})
var timer = setInterval(function () {
return runDir(1);
},2000);
})
</script>
</html>
文章目录
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