用js怎么写轮换图代码
用js怎么写轮换图代码以前写过给忘了我要那种就是body里面只有一个img然后就用js控制src的图片的名字的那种不要百科上面那种用displaynone的那种的...
用js怎么写轮换图代码 以前写过 给忘了 我要那种就是 body里面只有一个img 然后 就用js控制src的图片的名字的那种 不要百科上面那种 用display none的那种的
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<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<title>无标题文档</title>
<style>
* {margin:0; padding:0;}
#div1 {width:712px; height:108px; margin:100px auto; position:relative; background:red; overflow:hidden;}
#div1 ul {position:absolute; left:0; top:0;}
#div1 ul li {float:left; width:178px; height:108px; list-style:none;}
</style>
<script>
window.onload=function ()
{
var oDiv=document.getElementById('div1');
var oUl=oDiv.getElementsByTagName('ul')[0];
var aLi=oUl.getElementsByTagName('li');
oUl.innerHTML=oUl.innerHTML+oUl.innerHTML;
oUl.style.width=aLi[0].offsetWidth*aLi.length+'px';
setInterval(function (){
if(oUl.offsetLeft<-oUl.offsetWidth/2)
{
oUl.style.left='0';
}
oUl.style.left=oUl.offsetLeft-2+'px';
}, 30);
};
</script>
</head>
<body>
<div id="div1">
<ul>
<li><img src="img2/1.jpg" /></li>
<li><img src="img2/2.jpg" /></li>
<li><img src="img2/3.jpg" /></li>
<li><img src="img2/4.jpg" /></li>
</ul>
</div>
</body>
</html>
//js
function getStyle(obj, name)
{
if(obj.currentStyle)
{
return obj.currentStyle[name];
}
else
{
return getComputedStyle(obj, false)[name];
}
}
function startMove(obj, attr, iTarget)
{
clearInterval(obj.timer);
obj.timer=setInterval(function (){
var cur=0;
if(attr=='opacity')
{
cur=Math.round(parseFloat(getStyle(obj, attr))*100);
}
else
{
cur=parseInt(getStyle(obj, attr));
}
var speed=(iTarget-cur)/6;
speed=speed>0?Math.ceil(speed):Math.floor(speed);
if(cur==iTarget)
{
clearInterval(obj.timer);
}
else
{
if(attr=='opacity')
{
obj.style.filter='alpha(opacity:'+(cur+speed)+')';
obj.style.opacity=(cur+speed)/100;
document.getElementById('txt1').value=obj.style.opacity;
}
else
{
obj.style[attr]=cur+speed+'px';
}
}
}, 30);
}
//css
body { background: #666; } ul { padding: 0; margin: 0; } li { list-style: none; } img { border: 0; }
.play { width: 400px; height: 430px; margin: 50px auto 0; background: #999; font: 12px Arial; }
.big_pic { width: 400px; height: 320px; overflow: hidden; border-bottom: 1px solid #ccc; background: #222; position: relative; }
.big_pic li { width: 400px; height: 320px; overflow: hidden; position: absolute; top: 0; left: 0; z-index: 0; background: url(images/loading.gif) no-repeat center center; }
.mark_left { width: 200px; height: 320px; position: absolute; left: 0; top: 0; background: red; filter: alpha(opacity:0); opacity: 0; z-index:3000; }
.mark_right { width: 200px; height: 320px; position: absolute; left: 200px; top: 0; background: green; filter: alpha(opacity:0); opacity: 0; z-index:3000; }
.big_pic .prev { width: 60px; height: 60px; background: url(images/btn.gif) no-repeat; position: absolute; top: 130px; left: 10px; z-index: 3001; filter:alpha(opacity:0); opacity:0; cursor: pointer; }
.big_pic .next { width: 60px; height: 60px; background: url(images/btn.gif) no-repeat 0 -60px; position: absolute; top: 130px; right: 10px; z-index: 3001; filter:alpha(opacity:0); opacity:0; cursor: pointer; }
.big_pic .text { position: absolute; left: 10px; top: 302px; z-index: 3000; color: #ccc; }
.big_pic .length { position: absolute; right: 10px; bottom: 4px; z-index: 3000; color: #ccc; }
.big_pic .bg { width: 400px; height: 25px; background: #000; filter: alpha(opacity=60); opacity: 0.6; position: absolute; z-index: 2999; bottom: 0; left: 0; }
.small_pic { width: 380px; height: 94px; position: relative; top: 7px; left: 10px; overflow: hidden; }
.small_pic ul { height: 94px; position: absolute; top: 0; left: 0; }
.small_pic li { width: 120px; height: 94px; float: left; padding-right: 10px; background: url(images/loading.gif) no-repeat center center; cursor: pointer; filter: alpha(opacity=60); opacity: 0.6; }
.small_pic img { width: 120px; height: 94px; }
<html>
<head>
<meta charset="utf-8">
<title>无标题文档</title>
<style>
* {margin:0; padding:0;}
#div1 {width:712px; height:108px; margin:100px auto; position:relative; background:red; overflow:hidden;}
#div1 ul {position:absolute; left:0; top:0;}
#div1 ul li {float:left; width:178px; height:108px; list-style:none;}
</style>
<script>
window.onload=function ()
{
var oDiv=document.getElementById('div1');
var oUl=oDiv.getElementsByTagName('ul')[0];
var aLi=oUl.getElementsByTagName('li');
oUl.innerHTML=oUl.innerHTML+oUl.innerHTML;
oUl.style.width=aLi[0].offsetWidth*aLi.length+'px';
setInterval(function (){
if(oUl.offsetLeft<-oUl.offsetWidth/2)
{
oUl.style.left='0';
}
oUl.style.left=oUl.offsetLeft-2+'px';
}, 30);
};
</script>
</head>
<body>
<div id="div1">
<ul>
<li><img src="img2/1.jpg" /></li>
<li><img src="img2/2.jpg" /></li>
<li><img src="img2/3.jpg" /></li>
<li><img src="img2/4.jpg" /></li>
</ul>
</div>
</body>
</html>
//js
function getStyle(obj, name)
{
if(obj.currentStyle)
{
return obj.currentStyle[name];
}
else
{
return getComputedStyle(obj, false)[name];
}
}
function startMove(obj, attr, iTarget)
{
clearInterval(obj.timer);
obj.timer=setInterval(function (){
var cur=0;
if(attr=='opacity')
{
cur=Math.round(parseFloat(getStyle(obj, attr))*100);
}
else
{
cur=parseInt(getStyle(obj, attr));
}
var speed=(iTarget-cur)/6;
speed=speed>0?Math.ceil(speed):Math.floor(speed);
if(cur==iTarget)
{
clearInterval(obj.timer);
}
else
{
if(attr=='opacity')
{
obj.style.filter='alpha(opacity:'+(cur+speed)+')';
obj.style.opacity=(cur+speed)/100;
document.getElementById('txt1').value=obj.style.opacity;
}
else
{
obj.style[attr]=cur+speed+'px';
}
}
}, 30);
}
//css
body { background: #666; } ul { padding: 0; margin: 0; } li { list-style: none; } img { border: 0; }
.play { width: 400px; height: 430px; margin: 50px auto 0; background: #999; font: 12px Arial; }
.big_pic { width: 400px; height: 320px; overflow: hidden; border-bottom: 1px solid #ccc; background: #222; position: relative; }
.big_pic li { width: 400px; height: 320px; overflow: hidden; position: absolute; top: 0; left: 0; z-index: 0; background: url(images/loading.gif) no-repeat center center; }
.mark_left { width: 200px; height: 320px; position: absolute; left: 0; top: 0; background: red; filter: alpha(opacity:0); opacity: 0; z-index:3000; }
.mark_right { width: 200px; height: 320px; position: absolute; left: 200px; top: 0; background: green; filter: alpha(opacity:0); opacity: 0; z-index:3000; }
.big_pic .prev { width: 60px; height: 60px; background: url(images/btn.gif) no-repeat; position: absolute; top: 130px; left: 10px; z-index: 3001; filter:alpha(opacity:0); opacity:0; cursor: pointer; }
.big_pic .next { width: 60px; height: 60px; background: url(images/btn.gif) no-repeat 0 -60px; position: absolute; top: 130px; right: 10px; z-index: 3001; filter:alpha(opacity:0); opacity:0; cursor: pointer; }
.big_pic .text { position: absolute; left: 10px; top: 302px; z-index: 3000; color: #ccc; }
.big_pic .length { position: absolute; right: 10px; bottom: 4px; z-index: 3000; color: #ccc; }
.big_pic .bg { width: 400px; height: 25px; background: #000; filter: alpha(opacity=60); opacity: 0.6; position: absolute; z-index: 2999; bottom: 0; left: 0; }
.small_pic { width: 380px; height: 94px; position: relative; top: 7px; left: 10px; overflow: hidden; }
.small_pic ul { height: 94px; position: absolute; top: 0; left: 0; }
.small_pic li { width: 120px; height: 94px; float: left; padding-right: 10px; background: url(images/loading.gif) no-repeat center center; cursor: pointer; filter: alpha(opacity=60); opacity: 0.6; }
.small_pic img { width: 120px; height: 94px; }
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