箭头上下控制、无缝的，图片上下滚动代码

发布时间：2018-08-18 05:14:21 所属栏目：编程来源：站长网

导读：基于 Java Script的图片上下无缝滚动，带控制按钮，做的比较精致，兼容性方面，兼容IE全系列和火狐等主流浏览器。编写实现采用面向对象的原理，参考价值大。示例： !DOCTYPE html PUBLIC -//W3C//DTD XHTML 1.0 Transitional//EN http://www.w3.org/TR/xh

　　基于JavaScript的图片上下无缝滚动，带控制按钮，做的比较精致，兼容性方面，兼容IE全系列和火狐等主流浏览器。编写实现采用面向对象的原理，参考价值大。

　　示例：

<!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>无缝滚动</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(/uploads/allimg/1108/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="/uploads/common/images/s_p1.jpg" />Ozolio - Webcam Hosting</a></li> <li><a href="javascript:;"><img src="/uploads/common/images/s_p2.jpg" />Sullivan Construction Inc.</a></li> <li><a href="javascript:;"><img src="/uploads/common/images/s_p3.jpg" />Maui Stables</a></li> <li><a href="javascript:;"><img src="/uploads/common/images/s_p4.jpg" />Code Rebel 3.0</a></li> <li><a href="javascript:;"><img src="/uploads/common/images/s_p5.jpg" />SecurityPro Shop</a></li> </ul> </div> </div> </body> </html> <br /><center>如不能显示效果，请按Ctrl+F5刷新本页，更多网页代码：<a href='http://www.veryhuo.com/' target='_blank'>http://www.veryhuo.com/</a></center>
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