<!DOCTYPE html>
<html>
<head lang="en">
<meta charset="UTF-8">
<title> 广告图片轮播切换</title>
<link rel="stylesheet" href="css/style.css">
<script type="text/javascript" src="js/jquery-1.12.4.js"></script>
<script type="text/javascript">
$(function(){
/*创建一个集合保存图片*/
var imgs=new Array("adver01.jpg","adver02.jpg","adver03.jpg","adver04.jpg","adver05.jpg","adver06.jpg");
var flag=0; /*代表数组的下标*/
/*点击向左的按钮*/
$(".arrowLeft").click(function(){
var i=0;
if(flag==0){
flag=imgs.length-1;
i=flag+1; /*图片的编号 li中的值*/
}else{
flag--;
i=flag+1; /*图片的编号*/
}
$(".adver").css("background","url(images/"+imgs[flag]+")");
$("li:nth-of-type("+i+")").css("background","orange");
$("li:nth-of-type("+i+")").siblings().css("background","#333333");
});
/*点击向右的按钮*/
$(".arrowRight").click(function(){
var i=0;
if(flag==imgs.length-1){
flag=0;
i=flag+1; /*图片的编号*/
}else{
flag++;
i=flag+1; /*图片的编号*/
}
$(".adver").css("background","url(images/"+imgs[flag]+")");
$("li:nth-of-type("+i+")").css("background","orange");
$("li:nth-of-type("+i+")").siblings().css("background","#333333");
});
/*显示→ ← 的按钮*/
$(".adver").hover((function(){
$(".arrowRight").show();
$(".arrowLeft").show();
}),function(){
$(".arrowRight").hide();
$(".arrowLeft").hide();
})
})
</script>
</head>
<body>
<div class="adver">
<ul>
<li>1</li>
<li>2</li>
<li>3</li>
<li>4</li>
<li>5</li>
<li>6</li>
</ul>
<div class="arrowLeft"></div><div class="arrowRight"></div>
</div>
</body>
</html>
