JavaScript图片轮播代码

来源：互联网发布：sublime text 3编译js 编辑：程序博客网时间：2024/05/01 14:55

图片材料如上

<!DOCTYPE html>
<html>
<head>
<title>图片轮播</title>
<meta charset="utf-8">
<style type="text/css">
body,div,ul,li{
margin:0;
padding:0;
}
ul{
list-style: none;
}
body{
text-align: center;
}
#box{
position: relative;
width: 490px;
height: 170px;
background: #fff;
border:1px solid #000;
margin:0 auto;
}
#box .list{
position:relative;
width: 490px;
height:170px;
}
#box .list li{
position: absolute;
width: 490px;
height: 170px;
top:0;
left:0;
overflow: hidden;
opacity: 0;
transition: opacity .5s linear;
}
#box .list li.current{
opacity: 1;
}
#box .count{
position: absolute;
right:15px;
bottom:15px ;
}
#box .count li{
color: #000;
float:left;
width: 20px;
height: 20px;
border-radius: 50px;
cursor: pointer;
margin-right:5px;
overflow: hidden;
background: #fff;
opacity: 1;
}
#box .count li.current{
color:#fff;
opacity: 1;
background: #e4393c;
}
</style>
</head>
<body>
<div id="box">
<ul class="list">
<li class="current"><img src="img/1.jpg"></li>
<li><img src="img/2.jpg"></li>
<li><img src="img/3.jpg"></li>
<li><img src="img/4.jpg"></li>
<li><img src="img/5.jpg"></li>
</ul>
<ul class="count">
<li class="current">1</li>
<li>2</li>
<li>3</li>
<li>4</li>
<li>5</li>
</ul>
</div>
<script type="text/javascript">
+function(){
var box=document.getElementById("box");
var uls=document.getElementsByTagName("ul");
var imgs=uls[0].getElementsByTagName("li");
var btns=uls[1].getElementsByTagName("li");
var i=index=0;
var timer=null;
//传进一个下标，让按钮和图片做出切换
function show(a){
for(var i=0;i<btns.length;i++){
btns[i].className="";
btns[a].className="current";
}
for(var i=0;i<imgs.length;i++){
imgs[i].style.opacity=0;
imgs[a].style.opacity=1
}
}
//自动轮播方法
function autoPlay(){
timer=setInterval(function(){
index++;
index>=imgs.length&&(index=0);
show(index);
},2000)
}
autoPlay();
//鼠标进入btn时，停止图片轮播
for(var i=0;i<btns.length;i++){
btns[i].index=i;
btns[i].onmouseover=function(){
show(this.index);
clearInterval(timer);
}
}
//鼠标进出box时
box.onmouseover=function(){
clearInterval(timer);
};
box.onmouseout=function(){
autoPlay();
}

}();
</script>
</body>
</html>

<!DOCTYPE html>

<html>
<head>
<title>图片轮播</title>
<meta charset="utf-8">
<style type="text/css">
body,div,ul,li{
margin:0;
padding:0;
}
ul{
list-style: none;
}
body{
text-align: center;
}
#box{
position: relative;
width: 490px;
height: 170px;
background: #fff;
border:1px solid #000;
margin:0 auto;
}
#box .list{
position:relative;
width: 490px;
height:170px;
}
#box .list li{
position: absolute;
width: 490px;
height: 170px;
top:0;
left:0;
overflow: hidden;
opacity: 0;
transition: opacity .5s linear;
}
#box .list li.current{
opacity: 1;
}
#box .count{
position: absolute;
right:15px;
bottom:15px ;
}
#box .count li{
color: #000;
float:left;
width: 20px;
height: 20px;
border-radius: 50px;
cursor: pointer;
margin-right:5px;
overflow: hidden;
background: #fff;
opacity: 1;
}
#box .count li.current{
color:#fff;
opacity: 1;
background: #e4393c;
}
</style>
</head>
<body>
<div id="box">
<ul class="list">
<li class="current"><img src="img/1.jpg"></li>
<li><img src="img/2.jpg"></li>
<li><img src="img/3.jpg"></li>
<li><img src="img/4.jpg"></li>
<li><img src="img/5.jpg"></li>
</ul>
<ul class="count">
<li class="current">1</li>
<li>2</li>
<li>3</li>
<li>4</li>
<li>5</li>
</ul>
</div>
<script type="text/javascript">
+function(){
var box=document.getElementById("box");
var uls=document.getElementsByTagName("ul");
var imgs=uls[0].getElementsByTagName("li");
var btns=uls[1].getElementsByTagName("li");
var i=index=0;
var timer=null;
//传进一个下标，让按钮和图片做出切换
function show(a){
for(var i=0;i<btns.length;i++){
btns[i].className="";
btns[a].className="current";
}
for(var i=0;i<imgs.length;i++){
imgs[i].style.opacity=0;
imgs[a].style.opacity=1
}
}
//自动轮播方法
function autoPlay(){
timer=setInterval(function(){
index++;
index>=imgs.length&&(index=0);
show(index);
},2000)
}
autoPlay();
//鼠标进入btn时，停止图片轮播
for(var i=0;i<btns.length;i++){
btns[i].index=i;
btns[i].onmouseover=function(){
show(this.index);
clearInterval(timer);
}
}
//鼠标进出box时
box.onmouseover=function(){
clearInterval(timer);
};
box.onmouseout=function(){
autoPlay();
}

}();
</script>
</body>
</html>
<!DOCTYPE html>
<html>
<head>
<title>图片轮播</title>
<meta charset="utf-8">
<style type="text/css">
body,div,ul,li{
margin:0;
padding:0;
}
ul{
list-style: none;
}
body{
text-align: center;
}
#box{
position: relative;
width: 490px;
height: 170px;
background: #fff;
border:1px solid #000;
margin:0 auto;
}
#box .list{
position:relative;
width: 490px;
height:170px;
}
#box .list li{
position: absolute;
width: 490px;
height: 170px;
top:0;
left:0;
overflow: hidden;
opacity: 0;
transition: opacity .5s linear;
}
#box .list li.current{
opacity: 1;
}
#box .count{
position: absolute;
right:15px;
bottom:15px ;
}
#box .count li{
color: #000;
float:left;
width: 20px;
height: 20px;
border-radius: 50px;
cursor: pointer;
margin-right:5px;
overflow: hidden;
background: #fff;
opacity: 1;
}
#box .count li.current{
color:#fff;
opacity: 1;
background: #e4393c;
}
</style>
</head>
<body>
<div id="box">
<ul class="list">
<li class="current"><img src="img/1.jpg"></li>
<li><img src="img/2.jpg"></li>
<li><img src="img/3.jpg"></li>
<li><img src="img/4.jpg"></li>
<li><img src="img/5.jpg"></li>
</ul>
<ul class="count">
<li class="current">1</li>
<li>2</li>
<li>3</li>
<li>4</li>
<li>5</li>
</ul>
</div>
<script type="text/javascript">
+function(){
var box=document.getElementById("box");
var uls=document.getElementsByTagName("ul");
var imgs=uls[0].getElementsByTagName("li");
var btns=uls[1].getElementsByTagName("li");
var i=index=0;
var timer=null;
//传进一个下标，让按钮和图片做出切换
function show(a){
for(var i=0;i<btns.length;i++){
btns[i].className="";
btns[a].className="current";
}
for(var i=0;i<imgs.length;i++){
imgs[i].style.opacity=0;
imgs[a].style.opacity=1
}
}
//自动轮播方法，定义定时器
function autoPlay(){
timer=setInterval(function(){
index++;
index>=imgs.length&&(index=0);
show(index);
},2000)
}
autoPlay();
//鼠标进入btn时，停止图片轮播
for(var i=0;i<btns.length;i++){
btns[i].index=i;
btns[i].onmouseover=function(){
show(this.index);
clearInterval(timer);
}
}
//鼠标进入box时，停止轮播
box.onmouseover=function(){
clearInterval(timer);

};

//鼠标划出box时，启动定时器

box.onmouseout=function(){
autoPlay();
}

}();
</script>
</body>
</html>

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