屏幕快照 2018-01-23 上午11.03.02.png
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<meta name="keywords" content="网站关键字">
<meta name="description" content="网站描述">
<link rel="Shortcut Icon" href="img/favicon.ico">
<title>Document</title>
<link rel="stylesheet" href="https://cdn.bootcss.com/normalize/8.0.0/normalize.css">
<link rel="stylesheet" href="css/common.css">
<style media="screen">
body,div,dl,dt,dd,ul,ol,li,h1,h2,h3,h4,h5,h6,pre,code,form,fieldset,legend,input,textarea,p,blockquote,th,td {
margin:0;
padding:0;
}
ol,ul {
list-style:none
}
a {
text-decoration: none;
}
body {
min-width: 1336px;
font-family: "Arial","Microsoft Yahei","SimSun";
}
/* <!-- css 部分开始 --> */
.box{
margin-top: 300px;
width: 100%;
height: 340px;
position: relative;
}
.list{
width: 1200px;
height: 300px;
overflow: hidden;
position: absolute;
left: 50%;
margin-left: -600px;
}
.btn{
position: absolute;
top: 50%;
margin-top: -50px;
width: 60px;
height: 100px;
line-height: 100px;
font-size: 30px;
color: white;
text-decoration: none;
text-align: center;
background: rgba(0,255,0,.5);
cursor: pointer;
}
.next{
right: 0;
}
li{
position: absolute;
top: 0;
left: 0;
list-style: none;
opacity: 0;
transition: all 0.3s ease-out;
}
img{
width: 751px;
height: 300px;
border:none;
float: left;
}
.p1{
transform:translate3d(-224px,0,0) scale(0.81);
}
.p2{
transform:translate3d(0px,0,0) scale(0.81);
transform-origin:0 50%;
opacity: 0.8;
z-index: 2;
}
.p3{
transform:translate3d(224px,0,0) scale(1);
z-index: 3;
opacity: 1;
}
.p4{
transform:translate3d(449px,0,0) scale(0.81);
transform-origin:100% 50%;
opacity: 0.8;
z-index: 2;
}
.p5{
transform:translate3d(672px,0,0) scale(0.81);
}
.p6{
transform:translate3d(896px,0,0) scale(0.81);
}
.p7{
transform:translate3d(1120px,0,0) scale(0.81);
}
.buttons{
position: absolute;
width: 1200px;
height: 30px;
bottom: 0;
left: 50%;
margin-left: -600px;
text-align: center;
padding-top: 10px;
}
.buttons a{
display: inline-block;
width: 35px;
height: 5px;
padding-top: 4px;
cursor: pointer;
}
span{
display: block;
width: 35px;
height: 1px;
background: red;
}
.blue{
background: blue;
}
</style>
</head>
<body>
<!-- .container 版芯 -->
<div class="box">
<div class="list">
<ul>
<li class="p7"><a href="#"><img src="https://www.dummyimage.com/1080x432/000/fff" alt="" /></a></li>
<li class="p6"><a href="#"><img src="https://www.dummyimage.com/1080x432/222/fff" alt="" /></a></li>
<li class="p5"><a href="#"><img src="https://www.dummyimage.com/1080x432/444/fff" alt="" /></a></li>
<li class="p4"><a href="#"><img src="https://www.dummyimage.com/1080x432/666/fff" alt="" /></a></li>
<li class="p3"><a href="#"><img src="https://www.dummyimage.com/1080x432/888/fff" alt="" /></a></li>
<li class="p2"><a href="#"><img src="https://www.dummyimage.com/1080x432/bbb/fff" alt="" /></a></li>
<li class="p1"><a href="#"><img src="https://www.dummyimage.com/1080x432/ddd/fff" alt="" /></a></li>
</ul>
</div>
<a href="javascript:;" class="prev btn"><</a>
<a href="javascript:;" class="next btn">></a>
<div class="buttons">
<a href="javascript:;"><span class="blue"></span></a>
<a href="javascript:;"><span></span></a>
<a href="javascript:;"><span></span></a>
<a href="javascript:;"><span></span></a>
<a href="javascript:;"><span></span></a>
<a href="javascript:;"><span></span></a>
<a href="javascript:;"><span></span></a>
</div>
</div>
<script src="https://cdn.bootcss.com/jquery/1.12.4/jquery.js"></script>
<script type="text/javascript">
var $a=$(".buttons a");
var $s=$(".buttons span");
var cArr=["p7","p6","p5","p4","p3","p2","p1"];
var index=0;
$(".next").click(
function(){
nextimg();
}
)
$(".prev").click(
function(){
previmg();
}
)
//上一张
function previmg(){
cArr.unshift(cArr[6]);
cArr.pop();
//i是元素的索引，从0开始
//e为当前处理的元素
//each循环，当前处理的元素移除所有的class，然后添加数组索引i的class
$("li").each(function(i,e){
$(e).removeClass().addClass(cArr[i]);
})
index--;
if (index<0) {
index=6;
}
show();
}
//下一张
function nextimg(){
cArr.push(cArr[0]);
cArr.shift();
$("li").each(function(i,e){
$(e).removeClass().addClass(cArr[i]);
})
index++;
if (index>6) {
index=0;
}
show();
}
//通过底下按钮点击切换
$a.each(function(){
$(this).click(function(){
var myindex=$(this).index();
var b=myindex-index;
if(b==0){
return;
}
else if(b>0) {
/*
* splice(0,b)的意思是从索引0开始,取出数量为b的数组
* 因为每次点击之后数组都被改变了,所以当前显示的这个照片的索引才是0
* 所以取出从索引0到b的数组,就是从原本的这个照片到需要点击的照片的数组
* 这时候原本的数组也将这部分数组进行移除了
* 再把移除的数组添加的原本的数组的后面
*/
var newarr=cArr.splice(0,b);
cArr=$.merge(cArr,newarr);
$("li").each(function(i,e){
$(e).removeClass().addClass(cArr[i]);
})
index=myindex;
show();
}
else if(b<0){
/*
* 因为b<0,所以取数组的时候是倒序来取的,也就是说我们可以先把数组的顺序颠倒一下
* 而b现在是负值,所以取出索引0到-b即为需要取出的数组
* 也就是从原本的照片到需要点击的照片的数组
* 然后将原本的数组跟取出的数组进行拼接
* 再次倒序,使原本的倒序变为正序
*/
cArr.reverse();
var oldarr=cArr.splice(0,-b)
cArr=$.merge(cArr,oldarr);
cArr.reverse();
$("li").each(function(i,e){
$(e).removeClass().addClass(cArr[i]);
})
index=myindex;
show();
}
})
})
//改变底下按钮的背景色
function show(){
$($s).eq(index).addClass("blue").parent().siblings().children().removeClass("blue");
}
//点击class为p2的元素触发上一张照片的函数
$(document).on("click",".p2",function(){
previmg();
return false;//返回一个false值，让a标签不跳转
});
//点击class为p4的元素触发下一张照片的函数
$(document).on("click",".p4",function(){
nextimg();
return false;
});
// 鼠标移入box时清除定时器
$(".box").mouseover(function(){
clearInterval(timer);
})
// 鼠标移出box时开始定时器
$(".box").mouseleave(function(){
timer=setInterval(nextimg,4000);
})
// 进入页面自动开始定时器
timer=setInterval(nextimg,4000);
</script>
</body>
</html>
