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面向对象的无缝上下滚动图片特效代码，带上下箭头指示

稿源：互联网 2022-04-02 21:40:00 点击： 18194 撤稿纠错

无缝上下滚动（面向对象版）的一款网页特效，非常炫！我喜欢...

以下讨论的是和上下滚动滚动图片面向对象相关的面向对象的无缝上下滚动图片特效代码，带上下箭头指示教程文章，内容是本站精心挑选整理的教程，希望对广大的网友给到帮助,下面是详细内容：

脚本代码(For Alixixi.com)如下:

<!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=utf-8" />
<title>图片无缝滚动——阿里西西网页特效,js.alixixi.com</title>
<style type="text/css">
body,div,ul,li{margin:0;padding:0;}
body{background:#052D01;font:12px/1.5 arial;}
#box{position:relative;width:210px;height:700px;border:1px solid #5E8743;margin:20px;}
#box div{position:absolute;top:50%;left:50%;width:160px;height:570px;overflow:hidden;margin:-285px 0 0 -80px;}
#box .up,#box .down{position:absolute;left:50%;width:48px;height:48px;z-index:10;cursor:pointer;overflow:hidden;margin-left:-24px;text-indent:-9999px;background:url(http://js.alixixi.com/img/201108/arrow.jpg) no-repeat;}
#box .up{top:10px;background-position:0 0;}
#box .down{bottom:10px;background-position:0 bottom;}
#box ul{position:absolute;width:160px;}
#box li{width:160px;height:190px;list-style:none;text-align:center;}
#box a{color:#fff;font-weight:700;text-decoration:none;}
#box img{width:156px;height:156px;display:block;margin-bottom:5px;border:2px solid #ccc;}
</style>
<script type="text/javascript">
//获取id
function $ (id)
{
 return typeof id === "string" ? document.getElementById(id) : id; 
}
//获取tagName
function $$ (elem, oParent)
{
 return (oParent || document).getElementsByTagName(elem); 
}
//获取class
function $$$ (className, oParent)
{
 var aClass = [];
 var reClass = new RegExp("(//s|^)" + className + "($|//s)");
 var aElem = $$("*", oParent);
 for (var i = 0; i < aElem.length; i++) reClass.test(aElem[i].className) && aClass.push(aElem[i]);
 return aClass
}
//初始化对象
function Roll ()
{
 this.initialize.apply(this, arguments) 
}
Roll.prototype =
{
 initialize: function (obj)
 {
  var _this = this;
  this.obj = $(obj);
  this.oUp = $$$("up", this.obj)[0];
  this.oDown = $$$("down", this.obj)[0];
  this.oList = $$$("list", this.obj)[0];
  this.aItem = this.oList.children;
  this.timer = null;
  this.iNow = 0;
  this.iHeight = this.aItem[0].offsetHeight;
  this.oUp.onclick = function ()
  {
   _this.up() 
  };
  this.oDown.onclick = function ()
  {
   _this.down()
  } 
 },
 up: function ()
 {
  this.oList.insertBefore(this.aItem[this.aItem.length - 1], this.oList.firstChild);
  this.oList.style.top = -this.iHeight + "px";
  this.doMove(0)
 },
 down: function ()
 {
  this.doMove(-this.iHeight, function ()
  {
   this.oList.appendChild(this.aItem[0]);
   this.oList.style.top = 0; 
  })
 },
 doMove: function (iTarget, callBack)
 {
  var _this = this;
  clearInterval(this.timer)
  this.timer = setInterval(function ()
  {
   var iSpeed = (iTarget - _this.oList.offsetTop) / 5;
   iSpeed = iSpeed > 0 ? Math.ceil(iSpeed) : Math.floor(iSpeed);
   _this.oList.offsetTop == iTarget ? (clearInterval(_this.timer), callBack && callBack.apply(_this)) : _this.oList.style.top = iSpeed + _this.oList.offsetTop + "px"
  }, 30)
 }
};
window.onload = function ()
{
 new Roll("box");
};
</script>
</head>
<body>
<div id="box">
    <span class="up">up</span>
    <span class="down">down</span>
    <div>
        <ul class="list">
            <li><a href="javascript:;"><img src="http://js.alixixi.com/img/201108/1.jpeg" />Ozolio - Webcam Hosting</a></li>
            <li><a href="javascript:;"><img src="http://js.alixixi.com/img/201108/2.jpeg" />Sullivan Construction Inc.</a></li>
            <li><a href="javascript:;"><img src="http://js.alixixi.com/img/201108/3.jpeg" />Maui Stables</a></li>
            <li><a href="javascript:;"><img src="http://js.alixixi.com/img/201108/4.jpeg" />Code Rebel 3.0</a></li>
            <li><a href="javascript:;"><img src="http://js.alixixi.com/img/201108/5.jpeg" />SecurityPro Shop</a></li>
        </ul>
    </div>
</div>
</body>
</html>

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