本文实例讲述了JavaScript实现图片轮播的方法。分享给大家供大家参考。具体如下：
这里没有使用到JQUERY，没有过渡效果，图片可自行替换 。
test2.html页面：
<!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>无标题文档</title> <script src="http://lib.sinaapp.com/js/jquery/1.9.1/jquery-1.9.1.min.js"></script> <style> .img-div img{display:none;} </style> </head> <body> <div id="slide"> <div> <img src="model.jpg" /> <img src="model2.jpg" /> <img src="model.jpg" /> <img src="model2.jpg" /> <img src="model.jpg" /> </div> <div> <a href="#">1</a> <a href="#">2</a> <a href="#">3</a> <a href="#">4</a> <a href="#">5</a> </div> </div> <script type="text/javascript"> var zBase= { $id:function(id){return document.getElementById(id);}, $tagName:function(tagName,obj){return ((obj?obj:document).getElementsByTagName(tagName));}, $c:function(clsN,obj) { var tag=this.$tagName('*'),reg=new RegExp('(^|s)'+clsN+'(s|$)'),arr=[]; for(var i=0;i<tag.length;i++) { if(reg.test(tag[i].className)) { arr.push(tag[i]); } } return arr; }, $add:function(obj,clsN) { var reg=new RegExp('(^|s)'+clsN+'(s|$)'); if(!reg.test(obj.className)) { obj.className+=' '+clsN; } }, $remove:function(obj,clsN) { var cla=obj.className; var reg='/|s*'+clsN+'b/g'; obj.className=cla?cla.replace(eval(reg),''):''; }, css:function(obj,attr,value) { if(value) { obj.style[attr]=value; } else { return typeof window.getComputedStyle!="undefined"?window.getComputedStyle(obj,null)[attr]:obj.currentStyle[attr]; } }, easing: { liner:function(t,b,c,d){return c*t/d+b}, easeOut:function(t,b,c,d){return -c*((t=t/d-1)*t*t*t-1)+b} }, config: { index:0, auto:true, direct:'left' }, init:function() { this.slide=this.$id('slide'); this.img_div=this.$c('img-div')[0]; this.slide_btn=this.$tagName('a',this.$c('slide-btn')[0]); this.img_arr=this.$tagName('img',this.img_div); if(this.config.auto){this.play();} this.hover(); }, animate:function(obj,attr,val) { var d=1000; if(obj[attr+"timer"]){clearInterval(obj[attr+"timer"])}; var start= parseInt(zBase.css(obj,attr)); var space=val-start,st=(new Date().getTime()),m=space>0?'cell':'floor'; obj[attr+'timer']=setInterval(function(){ var t=(new Date().getTime()-st); if(t<d) { zBase.css(obj,attr,Math[m](zBase.easing["easeOut"](t,start,space,d))+"px"); } else { clearInterval(obj[attr+'timer']); zBase.css(obj,attr,top+space+"px"); } },20); }, hover:function() { for(var i=0;i<this.slide_btn.length;i++) { this.slide_btn[i].index=i; this.slide_btn[i].onmouseover=function() { if(zBase.slide.timer) { clearInterval(zBase.slide.timer); } zBase.config.index=this.index; //console.log(this.slide_btn); for(var j=0;j<zBase.slide_btn.length;j++) { zBase.$remove(zBase.slide_btn[j],'hover'); } zBase.$add(zBase.slide_btn[zBase.config.index],'hover'); zBase.animate(zBase.img_div,zBase.config.direct,-zBase.config.index*1000); } this.slide_btn[i].onmouseout=function() { zBase.play(); } } }, play:function(){ this.slide.timer = setInterval(function(){ var tags=zBase.$tagName('img',this.img_div); //zBase.$tagName('img',this.img_div)[zBase.config.index].style.display="block"; for(var i =0;i<tags.length;i++) { if(zBase.config.index==i) { zBase.$tagName('img',this.img_div)[zBase.config.index].style.display="block"; } else { zBase.$tagName('img',this.img_div)[i].style.display="none"; } } zBase.config.index++; if(zBase.config.index>=zBase.img_arr.length) zBase.config.index=0; zBase.animate(zBase.img_div,zBase.config.direct,-zBase.config.index*500); for(var j=0;j<zBase.slide_btn.length;j++){ zBase.$remove(zBase.slide_btn[j],'hover') ; } zBase.$add(zBase.slide_btn[zBase.config.index],'hover'); },3000) } } zBase.init(); </script> </body> </html>
希望本文所述对大家的javascript程序设计有所帮助。
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