@H_301_0@本文为大家分享了一种常见的并且比较复杂的轮播效果，就是优酷主界面的轮播图，效果图如下：
<div class="jb51code">
<pre class="brush:css;">
<style type="text/css">
*{
padding: 0;
margin: 0;
}
width: 1189px;
height: 360px;
margin: 100px auto;
position: relative;
overflow: hidden;
}
#youku ul{
list-style: none;
}
#youku .tuul li{
position: absolute;
background-color: black;
}
#youku li.waiting{
display: none;
}
#youku li img{
width: 100%;
height: 100%;
}
#youku .anniu .zuo{
position: absolute;
width: 45px;
height: 45px;
background:url(images/zuo.png) no-repeat;
top:100px;
left:10px;
z-index: 1000;
cursor: pointer;
}
#youku .anniu .you{
position: absolute;
width: 45px;
height: 45px;
background:url(images/you.png) no-repeat;
top:100px;
right:10px;
z-index: 1000;
cursor: pointer;
}
#youku li.no0{width: 174px;height:122px;left:-116px;top:100px;z-index: 777;}
#youku li.no1{width: 356px;height:223px;left:0px;top:26px;z-index: 888;}
#youku li.no2{width: 642px;height:273px;left:274px;top:0px;z-index: 999;}
#youku li.no3{width: 356px;height:223px;left:834px;top:26px;z-index: 888;}
#youku li.no4{width: 174px;height:122px;left:1097px;top:100px;z-index: 777;}
#youku li.no1 img,#youku li.no3 img{
opacity: 0.3;
}
#youku .xiaoyuandian{
width: 600px;
height: 20px;
position: absolute;
top: 312px;
left: 454px;
}
#youku .xiaoyuandian ul li{
float: left;
width: 16px;
height: 16px;
background-color: blue;
margin-right: 10px;
border-radius: 100px;
cursor: pointer;
}
#youku .xiaoyuandian ul li.cur{
background-color:green;
} //定义json
var json0 = {"width":"174px","height":"122px","left":"-116px","top":"100px"};
var json1 = {"width":"356px","height":"223px","left":"0px","top":"26px"};
var json2 = {"width":"642px","height":"273px","left":"274px","top":"0"};
var json3 = {"width":"356px","left":"834px","top":"26px"};
var json4 = {"width":"174px","left":"1097px","top":"100px"};
var nowimg = 2;
var timer = setInterval(youanniuyewu,2000);
$("#youku").mouseenter(
function() {
clearInterval(timer);
}
);
$("#youku").mouseleave(
function() {
clearInterval(timer);
timer = setInterval(youanniuyewu,2000);
}
);
$(".you").click(youanniuyewu);
function youanniuyewu(){
if(!$(".tuul li").is(":animated") || shangdi == true){
if(nowimg < 8){
nowimg ++;
}else{
nowimg = 0;
}
$(".xiaoyuandian li").eq(nowimg).addClass("cur").siblings().removeClass("cur");
//先交换位置
$(".no1").animate(json0,sudu);
$(".no2").animate(json1,sudu);
$(".no3").animate(json2,sudu);
$(".no4").animate(json3,sudu);
$(".no0").css(json4);
//再交换身份
$(".no0").attr("class","waiting");
$(".no1").attr("class","no0");
$(".no2").attr("class","no1");
$(".no3").attr("class","no2");
$(".no4").attr("class","no3");
//上面的交换身份，把no0搞没了！所以，我们让no1前面那个人改名为no0
if($(".no3").next().length != 0){
//如果no3后面有人，那么改变这个人的姓名为no4
$(".no3").next().attr("class","no4");
}else{
//no3前面没人，那么改变此时队列最开头的那个人的名字为no0
$(".tuul li:first").attr("class","no4");
}
//发现写完上面的程序之后，no6的行内样式还是json0的位置，所以强制：
$(".no4").css(json4);
}
}
$(".zuo").click(
function(){
if(!$(".tuul li").is(":animated") || shangdi == true){
if(nowimg > 0){
nowimg --;
}else{
nowimg = 8;
}
$(".xiaoyuandian li").eq(nowimg).addClass("cur").siblings().removeClass("cur");
//先交换位置:
$(".no0").animate(json1,sudu);
$(".no1").animate(json2,sudu);
$(".no2").animate(json3,sudu);
$(".no3").animate(json4,sudu);
$(".no4").css(json0);
//再交换身份
$(".no4").attr("class","waiting");
$(".no3").attr("class","no4");
$(".no2").attr("class","no3");
$(".no1").attr("class","no2");
$(".no0").attr("class","no1");
//上面的交换身份，把no0搞没了！所以，我们让no1前面那个人改名为no0
if($(".no1").prev().length != 0){
//如果no1前面有人，那么改变这个人的姓名为no0
$(".no1").prev().attr("class","no0");
}else{
//no1前面没人，那么改变此时队列最后的那个人的名字为no0
$(".tuul li:last").attr("class","no0");
}
$(".no0").css(json0);
}
}
);
$("#youku .xiaoyuandian li").click(
function(){
sudu = 100; //临时把这个速度变化一下
shangdi = true; //flag
var yonghuandexuhao = $(this).index();
if(yonghuandexuhao > nowimg ){
var cishu = yonghuandexuhao - nowimg;
console.log("主人，我已经<a href="https://www.jb51.cc/tag/tongzhi/" target="_blank" class="keywords">通知</a>上帝帮你按右按钮" + cishu + "次");
for(var i = 1 ; i<= cishu ; i++){
$(".you").trigger("click"); //让上帝帮你按一次又按钮
}
}else{
var cishu = nowimg - yonghuandexuhao;
console.log("主人，我已经<a href="https://www.jb51.cc/tag/tongzhi/" target="_blank" class="keywords">通知</a>上帝帮你按左按钮" + cishu + "次");
for(var i = 1 ; i<= cishu ; i++){
$(".zuo").trigger("click"); //让上帝帮你按一次又按钮
}
}
nowimg = yonghuandexuhao;
sudu = 600; //再把速度恢复
shangdi = false;
}
);
}
);
