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图片左右切换
syqaily的博客
Original
683 people have browsed it

<!DOCTYPE html>

<html>

<head>

<meta charset="UTF-8">

<title></title>

<style>

body,p{margin: 0; padding: 0;}

img{border: none; vertical-align: top;}

#box{width: 400px; height: 400px; border: 5px solid #ccc; margin: 100px auto 0; position: relative; font-size: 14px; font-family: "微软雅黑";}

#p1,#span1,a{position: absolute; color: #fff;}

#p1,#span1{left: 0; height: 30px; line-height: 30px; background: #000; opacity: 0.5; filter:alpha(opacity=50); width: 400px; text-align: center;}

#p1{bottom: 0;}

#span1{top: 0;}

a{font-size: 30px; color: #fff; top:185px; text-decoration: none;}

a:hover{opacity: 0.5;filter:alpha(opacity=50);}

#prev{left: 0;}

#next{right: 0;}

</style>

</head>

<body>

<div id="box">

<img src="" id="img1"  width="400" height="400"/>

<p id="p1">11</p>

<span id="span1">22</span>

<a href="javascript:;" id="prev">&lt;</a>

<a href="javascript:;" id="next">&gt;</a>

</div>

<script type="text/javascript">

            var oImg=document.getElementById('img1');

            var oP=document.getElementById('p1');

            var oSpan=document.getElementById('span1');

            var oPrev=document.getElementById('prev');

            oNext=document.getElementById('next');

            var arrImg=['img/1.jpg','img/2.jpg','img/3.jpg','img/4.jpg'];

            var arrText=['第一句话','第二句话','第三句话','第四句话'];

            var num=0;

            auto();

            function auto(){

           oImg.src=arrImg[num];

           oP.innerHTML=arrText[num];

           oSpan.innerHTML=num+1+'/'+arrImg.length;

            }

            oNext.onclick=function(){

            if(num<3){

             num++;

            }else

            {

            num=0;

            }

   auto();

            }

            oPrev.onclick=function(){

            if(num>0){

            num--;

            }else

            {

            num=arrImg.length-1;

            }          

            auto();

            }

</script>

</body>

</html>


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