<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>js实现图片无缝轮播</title>
<script src="https://code.jquery.com/jquery-3.3.1.min.js"></script>
</head>
<style>
.b2{
width: 200px;
height: 200px;
margin: 44px auto 0;
position: relative;
overflow: hidden;
background-color: gray;
}
.b2 .b2list{
width: 600px;
height: 200px;
position: absolute;
top: 0;
left: 0;
}
.b2 .item{
width: 200px;
height: 200px;
float: left;
}
.b2 .item:nth-child(1) {
background-image: url("https://ximg.2cq.com/img/system/ad/tieba/7665cfeb1b50e560693509b7a4045861.jpeg");
background-size: 200px 200px;
}
.b2 .item:nth-child(2){
background-image: url("https://ximg.2cq.com/img/system/ad/tieba/ee34f88f37b317849cc0e80076b89bab.jpeg");
background-size: 200px 200px;
}
.b2 .item:nth-child(3){
background-image: url("https://ximg.2cq.com/img/system/ad/tieba/1c9b819f1b9ede319e8e1b8ba63066e8.jpeg");
background-size: 200px 200px;
}
</style>
<body>
<div class="b2">
<div class="b2list" data="0">
<div class="item">1</div>
<div class="item">2</div>
<div class="item">3</div>
</div>
</div>
<script>
$(function(){
setInterval("auto_left_me();",3000);
});
function auto_left_me(){
var num = $(".b2 .b2list").attr("data");
num++; if(num>2){
num=0;
}
$(".b2 .b2list").attr("data",num);
$('.b2 .b2list').animate({'left':-200*num});
} </script>
</body>
</html>