用JS模仿2010上海世博网站Flash幻灯切换结果

发布时间：2018-08-26 18:18:04 所属栏目：编程来源：站长网

导读：这是一款核心图幻灯片切换的结果，这种结果被列位站长应用在本身的网站上。作为2010年世博会的举行方，上海世博的官方主页也行使了flash核心图片切换，应伴侣之要求，此刻用 Java Script模仿出来，猛火看了一下结果不错，简捷不失大方，滑腻不失动感！喜好

　　这是一款核心图幻灯片切换的结果，这种结果被列位站长应用在本身的网站上。作为2010年世博会的举行方，上海世博的官方主页也行使了flash核心图片切换，应伴侣之要求，此刻用JavaScript模仿出来，猛火看了一下结果不错，简捷不失大方，滑腻不失动感！喜好的伴侣拿去用吧，纯JS写的，没有效到Flash文件。

　　查察演示与实例代码：

<!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=GBK" /> <title>JavaScript仿2010世博会主页flash核心图片 - Liehuo.Net</title> <style type="text/css"> *{border:0;margin:0;border:0;list-style:none;} body{padding:20px;background:#eee;} #focus_change{width:450px;height:350px;position:relative;overflow:hidden;font-family:Verdana, Arial, Helvetica, sans-serif;background:#fff;} #loading{position:absolute;z-index:9999;width:450px;height:350px;background:#fff url(/uploads/common/images/loading_1.gif) center -40px no-repeat;color:#666;font-size:12px;text-align:center;padding-top:90px;} #ts_bg{position:absolute;bottom:0;z-index:1;width:450px;height:36px;background:#000;filter:alpha(opacity=40);opacity:0.4;} #pics li{position:absolute;top:0px;left:0px;} #pics li img{filter:alpha(opacity=0);opacity:0;width:450px;height:350px;}/*图片巨细与框架保持同等*/ #ts li{position:absolute;z-index:2;left:0;bottom:-32px;height:32px;line-height:32px;font-size:14px;font-weight:bold;padding-left:16px;} #ts li a{color:#fff; text-decoration:none;}/*问题链接样式*/ #btn,#btn_bg{position:absolute;z-index:3;bottom:8px;right:8px;color:#fff;font-size:12px;} #btn li,#btn_bg li{float:left;width:22px;height:18px;line-height:18px;overflow:hidden;text-align:center;margin-right:1px;} #btn_bg li{background:#fff;filter:alpha(opacity=50);opacity:0.5;} #btn li.current {background:#F60;} </style> <script type="text/javascript"> /*design by koen @ 10nian5yue8ri*/ /*http://hi.baidu.com/koen_li*/ function $(id) {return document.getElementById(id);} function $$(tag,id){return (id==undefined?document:this.$(id)).getElementsByTagName(tag);} function poptit(tsID,n){//笔墨上下<b>行为</b>函数 var ts = $$('li',tsID); var setway=function(obj,y){obj.style.bottom=y+'px';} var getway=function(obj){return parseInt(obj.style.bottom);} var up=function(){ if (ts[n].movement) clearTimeout(ts[n].movement);//为了兼容变革中的点击 if (y1 == 0) return true; y1+=Math.ceil((0 - y1) / 5); setway(ts[n],y1); if(y1<0) ts[n].movement = setTimeout(up, 1); } var down=function(){ if (ts[N].movement) clearTimeout(ts[N].movement); if (y2 == -32) return true; y2+=Math.floor((-32 - y2) / 5); setway(ts[N],y2); if(y2>-32) ts[N].movement = setTimeout(down, 1); } for(var i=0;i<ts.length;i++){ if (!ts[i].style.bottom) ts[i].style.bottom = "-32px"; if(ts[i].name=='up') var N=i; } if(!N&&n==0) {//开始载入... ts[n].name='up'; var y1=getway(ts[n]); up(); return true; } if(N==n) return true;//防备快速移出移入的发抖 ts[N].name=''//标志淡入的name为空 ts[n].name='up'; var y1=getway(ts[n]); var y2=getway(ts[N]); down(); up(); } function opa(pics,n){//图片淡入淡出函数 var pics = $$('img',pics); var setfade=function(obj,o){ if (document.all) obj.style.filter = "alpha(opacity=" + o + ")"; else obj.style.opacity = (o / 100); }; var getfade=function(obj){ return (document.all)?((obj.filters.alpha.opacity)?obj.filters.alpha.opacity:false):((obj.style.opacity)?obj.style.opacity*100:false); } var show=function(){ if(pics[n].move) clearTimeout(pics[n].move); if (o1 == 100) return true; o1+=5; setfade(pics[n],o1); if(o1<100) pics[n].move=setTimeout(show,1); }; var hide=function(){ if(pics[N].move) clearTimeout(pics[N].move); if (o2 == 0) return true; o2-=5; setfade(pics[N],o2); if(o2>0) pics[N].move=setTimeout(hide,1); }; for(var i=0;i<pics.length;i++){ if(!getfade(pics[i])) setfade(pics[i],0); if(pics[i].name=='out') var N=i; } if(!N&&n==0) {//开始载入... pics[n].name='out'; var o1=getfade(pics[n]); show(); return true; } if(N==n) return true; pics[N].name='' pics[n].name='out'; var o1=getfade(pics[n]); var o2=getfade(pics[N]); hide(); show(); } function classNormal() {//数字标签样式破除 var focusBtnList = $$('li','btn'); for (var i = 0; i < focusBtnList.length; i++) { focusBtnList[i].className = ''; } } function autoFocusChange() {//自动运行 if (atuokey) return; var focusBtnList = $$('li','btn'); for (var i = 0; i < focusBtnList.length; i++) { if (focusBtnList[i].className == 'current') { var currentNum = i; } } if(currentNum<focusBtnList.length-1){ poptit('ts',currentNum+1); opa('pics',currentNum+1); classNormal(); focusBtnList[currentNum+1].className = 'current'; }else if(currentNum==focusBtnList.length-1){ poptit('ts',0); opa('pics',0); classNormal(); focusBtnList[0].className = 'current'; } } function focusChange() {//交互切换 var focusBtnList = $$('li','btn'); for (var i = 0; i < focusBtnList.length; i++) { focusBtnList[i].I=i; focusBtnList[i].onclick = function(){ poptit('ts',this.I); opa('pics',this.I); classNormal(); focusBtnList[this.I].className = 'current'; } focusBtnList[i].onmouseover = function(){ this.style.backgroundColor='#f60'; this.style.cursor='pointer'; } focusBtnList[i].onmouseout = function(){ this.style.backgroundColor=''; } } } var atuokey = ''; function init(){//初始化 $('btn_bg').innerHTML=$('btn').innerHTML; $('focus_change').removeChild($$('div','focus_change')[0]); poptit('ts',0); opa('pics',0); classNormal(); $$('li','btn')[0].className = 'current'; $('focus_change').onmouseover = function() { atuokey = true; clearInterval(auto); } $('focus_change').onmouseout = function() { atuokey = false; auto=setInterval('autoFocusChange()', T); } } var T=3000;//每帧图片逗留的时刻，1000=1秒 var auto=''; window.onload=function(){ init(); focusChange(); auto=setInterval('autoFocusChange()', T); } </script> </head> <body> <div id="focus_change"> <div id="loading">请稍候...</div> <div id="ts_bg">笔墨问题的配景</div> <div id="btn_bg">数字标签的配景</div> <div id="pics"> <ul> <li><a href="#"><img src="/uploads/common/images/liehuonet_400x345_2.jpg" alt="^_^" /></a></li> <li><a href="#"><img src="/uploads/common/images/liehuonet_400x345_3.jpg" alt="^_^" /></a></li> <li><a href="#"><img src="/uploads/common/images/liehuonet_400x345_4.jpg" alt="^_^" /></a></li> <li><a href="#"><img src="/uploads/common/images/liehuonet_400x345_5.jpg" alt="^_^" /></a></li> </ul> </div> <div id="ts"> <ul> <li><a href="#">行使简朴，只需修改html内容和样式</a></li> <li><a href="#">自界说框架(图片)巨细，问题虽然也可调</a></li> <li><a href="#">也可以添加更多的帧/图片，无需修改JS代码</a></li> <li><a href="#">奈何，行使是不是太简朴了？</a></li> </ul> </div> <div id="btn"> <ul> <li>1</li> <li>2</li> <li>3</li> <li>4</li> </ul> </div> </div> </body> </html><br /><center>如不能表现结果，请按Ctrl+F5革新本页，更多网页代码：<a href='http://www.veryhuo.com/' target='_blank'>http://www.veryhuo.com/</a></center>
提醒：可修改儿女码再运行!

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