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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>滚动轮播图</title>
<style>
*{
padding:0;
margin:0;
}
.span1{
position:absolute;
top:50%;
left:0;
width:40px;
height:40px;
background-color:rgba(150,100,100,.6);
cursor:pointer;
display:none;
}
.span2{
position:absolute;
display:none;
top:50%;
right:0;
width:40px;
height:40px;
background-color:red;
background-color:rgba(150,100,100,.6);
cursor:pointer;
}
.main{
position:relative;
width:400px;
height:400px;
background-color:gray;
margin:0 auto;
}
.main img{
width:400px;
height:400px;
}
ul{
display:flex;
width:1600px;
height:400px;
background-color:red;
}
ul li{
/* float:left; */
list-style:none;
}
.em1{
display:block;
width:20px;
height:20px;
/* background-color:yellow; */
margin:0 auto;
margin-top:5px;
border:5px solid #fff;
border-bottom:none;
border-right:none;
transform:rotate(-45deg);
}
.em2{
display:block;
width:20px;
height:20px;
/* background-color:yellow; */
margin:0 auto;
margin-top:5px;
border:5px solid #fff;
border-bottom:none;
border-right:none;
transform:rotate(135deg);
}
ol{
position:absolute;
/* top:50%;*/
bottom:5%;
left:25%;
width:200px;
height:40px;
background-color:red;
}
ol li{
width:5px;
height:5px;
border-radius:50%;
border:3px solid black;
}
</style>
</head>
<body>
<div class='main'>
<ul>
<li><img src='img/24_404_15a398a36e51a9e.gif'></li>
<li><img src='img/24_404_7f5a32ac20ee3ef.gif'></li>
<li><img src='img/24_404_8675904ec7935f2.gif'></li>
<li><img src='img/24_404_e52d2c605f2fb83.gif'></li>
</ul>
<ol>
</ol>
<span class="span1"><em class='em1'></em></span>
<span class="span2"><em class='em2'></em></span>
</div>
<script>
var ul=document.querySelector('ul');
var ol=document.querySelector('ol');
var lis=document.querySelector('li');
var spans=document.querySelectorAll('span');
console.log(spans[0].style.display);
spans.addEventListener('mousemove',function(){
for(var i=0 ;i<spans.length;i++){
spans[i].style.display='block';
}
});
spans.addEventListener('mouseleave',function(){
for( var i=0 ;i<spans.length;i++){
spans[i].style.display='none';
}
});
console.log(spans.length);
for(var i=0; i<lis.length;i++){
var li=document.createElement('li');
ol.appendChild(li);
}
</script>
</body>
</html>
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