继续优化
<!DOCTYPE html>
<html lang="en"> <head>
<meta charset="UTF-8">
<title>轮播图</title>
<!-- <link rel="stylesheet" type="text/css" href="css/style.css"> -->
<script type="text/javascript" src="https://cdn.bootcss.com/jquery/3.2.1/jquery.min.js"></script>
<!-- <script type="text/javascript" src="js/lunbo.js"></script> -->
<style type="text/css">
*{
margin: 0;
padding: 0;
} body {
font-size: 14px;
line-height: 1.5;
font-family: 'Microsoft Yahei', 'arial', 'tahoma', 'simsun';
color: #666;
background-color: #fff
} img {
border: 0;
} a {
text-decoration: none;
color: #666;
}
.public_scroll {
position: relative;
min-width: 1100px;
max-width: 100%;
height: 793px; overflow: hidden; }
.public_s_list{ overflow: hidden;} .public_s_list a {
position: absolute; display: block;
width: 100%;
} .public_s_list a img {
width: 100%;
display: block; }
.public_s_dot{ overflow: hidden; text-align: center; position: absolute; bottom:25px; z-index: 2; width: 100%; }
.public_s_dot i{ width: 10px; height: 10px; background-color: #fff; margin:0 8px; display: inline-block; cursor: pointer; border-radius: 50%;}
.public_s_dot .active{ background-color: #808080 }
</style>
</head> <body>
<div class="public_scroll" id="publicScroll">
<div class="public_s_list">
<a href="javascript:;" class="J_pic"><img src="http://www.emoi.com/media/pc-cn/201810/1540853894181026841.jpg" alt="1"></a>
<a href="javascript:;" class="J_pic"><img src="http://www.emoi.com/media/pc-cn/201805/1525203825936416255.jpg" alt="2"></a>
<a href="javascript:;" class="J_pic"><img src="http://www.emoi.com/media/pc-cn/201712/1513641621162167882.jpg" alt="3"></a>
</div>
<div class="public_s_dot" id="publicDot"></div>
</div>
<script type="text/javascript">
$(function() {
var index = 0;
var timer;
//获取id为publicScroll 所有的img
var imgList = $('#publicScroll .J_pic');
//img的个数
var imgNum = imgList.length;
if(imgNum>1){
//第一张图显示
$('.J_pic').eq(0).show().siblings().hide();
$('.J_pic').mouseover(function(){
clearInterval(timer); //鼠标经过停止自动播放
});
$('.J_pic').mouseout(function(){
showTime(); //鼠标离开继续自动播放
});
// 填充分页
var bPage=$('#publicDot');
var html='';
for(var i=0,max=imgNum;i<max;i++){
html+=(i==0)?'<i class="active"></i>':'<i></i>';
}
bPage.append(html);
// //鼠标点击分页
bPage.children('i').on('click',function(){
index=$(this).index();
showBg();
})
function showBg() {
$('.J_pic').eq(index).fadeIn(300).siblings().fadeOut(300);
bPage.children('i').eq(index).addClass('active').siblings().removeClass('active');
}
function showTime() {
timer = setInterval(function() {
index++;
if (index == imgNum) {
index = 0;
}
showBg();
}, 4000);
}
//自动播放图片
showTime();
}
});
</script>
</body> </html>