本文实例为大家分享了jQuery焦点图左右转换的具体代码，供大家参考，具体内容如下
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>焦点图转换</title>
<link rel="stylesheet" href="css/reset.css">
<style type="text/css">
.pic-show{width: 480px;overflow: hidden;}
.pic{width: 1920px;height: 320px;position: relative;}
.pic img{display: block;float: left;}
.pic-show>img{display: block;cursor: pointer;opacity: 0.8; position: absolute;top: 142px;left: 30px;}
.pic-show>img:last-child{display: block; position: absolute;left: 414px; }
ul{width: 120px;height: 18px;position: absolute;top: 280px;left: 185px;}
li{float: left;width: 20px;height: 18px;margin-left: 5px;}
a{display: block;width: 20px;height: 18px;text-decoration: none;border: 1px solid #ccc;border-radius: 50%;background-color: #ccc;opacity: 0.6;}
a:hover{background-color: #094a99;}
.aCss{background-color: #094a99;}
p{width: 480px;text-align: center;}
</style>
</head>
<body>
<div class="pic-show">
<div class="pic">
<img src="images/1.jpg" alt="">
<img src="images/2.jpg" alt="">
<img src="images/3.jpg" alt="">
<img src="images/4.jpg" alt="">
</div>
<img class="prev" src="images/slider-prev.png" alt="">
<img class="next" src="images/slider-next.png" alt="">
</div>
<ul>
<li><a class="aCss" href="#" title="日落"></a></li>
<li><a href="#" title="钢琴"></a></li>
<li><a href="#" title="大海"></a></li>
<li><a href="#" title="秋色"></a></li>
</ul>
<p>这是一段测试文字</p>
<script src="js/jquery-3.0.0.js"></script>
<script type="text/javascript">
var num=0;//定义num，以便点击左右按钮时得到0,1,2,3这四个值来找到图片
//点击next按钮
$(".pic-show .next").click(function(event){
if(num<3){
num=num+1;
}
else{
num=0;
}
console.log(num);
var mlNum=num * -480+'px';
$(".pic").animate({"margin-left":mlNum},1000)
$("ul li:eq("+num+") a").addClass("aCss").parent().siblings().find("a").removeClass("aCss");
event.preventDefault();
var txt=$("ul li").eq(num).find("a").attr("title");
console.log(txt);
$("p").text(txt);
})
//点击prev按钮
$(".pic-show .prev").click(function(event){
if(num>0){
num=num-1;
}
else{
num=3;
}
console.log(num);
var mlNum2=num * -480+'px';
$(".pic").animate({"margin-left":mlNum2},1000)
$("ul li").eq(num).find("a").addClass("aCss").parent().siblings().find("a").removeClass("aCss");
event.preventDefault();
var txt=$("ul li").eq(num).find("a").attr("title");
console.log(txt);
$("p").text(txt);
})
$("ul li a").click(function(event){
num=$(this).parent().index();
var mlNum3=num * -480+'px';
$(".pic").animate({"margin-left":mlNum3},500)
$(this).addClass("aCss").parent().siblings().find("a").removeClass("aCss");//addClass
event.preventDefault();
var txt=$(this).attr("title");
console.log(txt);//测试用
$("p").text(txt);
})
</script>
</body>
</html>
