html代码
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" />
<title>js图片自动轮播切换代码</title>
<link href="lanrenzhijia.css" type="text/css" rel="stylesheet" />
<script type="text/javascript" src="lanrenzhijia.js"></script>
</head>
<body>
<div id="box_lanrenzhijia">
<div class="list">
<ul>
<li><img src="01.jpg" width="1000" height="170" /></li>
<li><img src="02.jpg" width="1000" height="170" /></li>
<li><img src="03.jpg" width="1000" height="170" /></li>
<li><img src="04.jpg" width="1000" height="170" /></li>
<li><img src="05.jpg" width="1000" height="170" /></li>
</ul>
</div>
</div>
</body>
</html>
CSS部分代码
@charset "utf-8";
body, div, ul, li {
margin:0;
padding:0;
}
ul {
list-style-type:none;
}
#box_lanrenzhijia {
position:relative;
width:1000px;/*控制DIV大小*/
height:172px;
background:#fff;
border-radius:5px;
border:8px solid #fff;
margin:10px auto;
cursor:pointer;
}
#box_lanrenzhijia .list {
position:relative;
width:1000px;/*这也改*/
height:170px;
overflow:hidden;
}
#box_lanrenzhijia .list ul {
position:absolute;
top:0;
left:0;
}
#box_lanrenzhijia .list li {
width:1000px;/*这也改*/
height:170px;
overflow:hidden;
}
#box_lanrenzhijia .count {
position:absolute;
right:0;
bottom:5px;
}
#box_lanrenzhijia .count li {
color:#fff;
float:left;
width:20px;
height:20px;
cursor:pointer;
margin-right:5px;
overflow:hidden;
background:#F90;
opacity:0.7;
filter:alpha(opacity=70);
border-radius:20px;
}
#box_lanrenzhijia .count li.current {
color:#fff;
opacity:1;
filter:alpha(opacity=100);
font-weight:700;
background:#f60;
}
#tmp {
width:100px;
height:100px;
background:red;
position:absolute;
}
js部分代码
// 代码整理：懒人之家
//获取ID
var $ = function (id) {return typeof id === "string" ? document.getElementById(id) : id};
//获取tagName
var $$ = function (tagName, oParent) {return (oParent || document).getElementsByTagName(tagName)};
//自动播放对象
var AutoPlay = function (id) {this.initialize(id)};
AutoPlay.prototype = {
initialize: function (id)
{
var oThis = this;
this.oBox = $(id);
this.oUl = $$("ul", this.oBox)[0];
this.aImg = $$("img", this.oBox);
this.timer = null;
this.autoTimer = null;
this.iNow = 0;
this.creatBtn();
this.aBtn = $$("li", this.oCount);
this.toggle();
this.autoTimer = setInterval(function ()
{
oThis.next()
}, 3000);
this.oBox.onmouseover = function ()
{
clearInterval(oThis.autoTimer)
};
this.oBox.onmouseout = function ()
{
oThis.autoTimer = setInterval(function ()
{
oThis.next()
}, 3000)
};
for (var i = 0; i < this.aBtn.length; i++)
{
this.aBtn[i].index = i;
this.aBtn[i].onmouseover = function ()
{
oThis.iNow = this.index;
oThis.toggle()
}
}
},
creatBtn: function ()
{
this.oCount = document.createElement("ul");
this.oFrag = document.createDocumentFragment();
this.oCount.className = "count";
for (var i = 0; i < this.aImg.length; i++)
{
var oLi = document.createElement("li");
oLi.innerHTML = i + 1;
this.oFrag.appendChild(oLi)
}
this.oCount.appendChild(this.oFrag);
this.oBox.appendChild(this.oCount)
},
toggle: function ()
{
for (var i = 0; i < this.aBtn.length; i++) this.aBtn[i].className = "";
this.aBtn[this.iNow].className = "current";
this.doMove(-(this.iNow * this.aImg[0].offsetHeight))
},
next: function ()
{
this.iNow++;
this.iNow == this.aBtn.length && (this.iNow = 0);
this.toggle()
},
doMove: function (iTarget)
{
var oThis = this;
clearInterval(oThis.timer);
oThis.timer = setInterval(function ()
{
var iSpeed = (iTarget - oThis.oUl.offsetTop) / 5;
iSpeed = iSpeed > 0 ? Math.ceil(iSpeed) : Math.floor(iSpeed);
oThis.oUl.offsetTop == iTarget ? clearInterval(oThis.timer) : (oThis.oUl.style.top = oThis.oUl.offsetTop + iSpeed + "px")
}, 30)
}
};
window.onload = function ()
{
new AutoPlay("box_lanrenzhijia");
};
时间： 2024-10-06 01:34:25