jq图片无缝滚动
2018-10-20 本文已影响6人
前端来入坑
jq无缝轮播图.gif
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>jq-img-sroll</title>
<script src="https://cdn.bootcss.com/jquery/3.3.1/jquery.js"></script>
<style>
*{margin: 0;padding: 0}
ul{list-style: none}
.box ul li{display: block;float: left;width: 300px;height: 300px;margin-right: -1px;background-size: cover;background-position: center center;}
.box{height: 300px;}
#box1,#box2{float: left}
.wrap{position: relative;width: 800px;margin: auto;height: 300px;overflow: hidden}
.box{position: absolute;left: 0;}
</style>
</head>
<body>
<div class="wrap">
<div class="box">
<ul id="box1">
<li style="background:url(zly.jpg) no-repeat;background-size: 100% 100%;">here is images1</li>
<li style="background:url(zly.jpg) no-repeat;background-size: 100% 100%;">here is images2</li>
<li style="background:url(zly.jpg) no-repeat;background-size: 100% 100%;">here is images3</li>
<li style="background:url(zly.jpg) no-repeat;background-size: 100% 100%;">here is images4</li>
<li style="background:url(zly.jpg) no-repeat;background-size: 100% 100%;">here is images5</li>
</ul>
<ul id="box2"></ul>
</div>
</div>
<script>
$(function() {
var boxwidth = $("#box1").children().length*300;
$(".box").css({'width':boxwidth*2 +10 + 'px'});// 动态的设置box的宽度,多设置10像素
var timer='';//设置一个定时器
var $box1=$('#box1').children().clone(true);/*克隆box1的子元素*/
$('#box2').append($box1);//将复制的元素插入到#box2中
var $left=parseInt($('.box').css('left'));//获取.box的left值
var scroll=function(){
$left-=2;//设置滚动速度为2
$('.box').css('left',$left+'px');//left赋值
if($left<-boxwidth){//当box值小于-1500px时，重置.box left值为0；实现无缝滚动
$('.box').css('left','0');
$left=0;
}
timer =setTimeout(scroll,30);
}
setTimeout(scroll,100);//刷新网页100ms后开始滚动
$('.wrap').hover(function(){
clearTimeout(timer);//鼠标滑过清除滚动
},function(){
setTimeout(scroll,100);//鼠标移开继续滚动
});
})
</script>
</body>
</html>
带上素材
zly.jpg
