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JavaScript图片轮播的实例分享

2015-08-19 07:24:50 来源:www.45fan.com 【

JavaScript图片轮播的实例分享

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 class="slide" id="slide">
<div class="img-div">
 <img src="model.jpg" />
 <img src="model2.jpg" />
 <img src="model.jpg" />
 <img src="model2.jpg" />
 <img src="model.jpg" />
</div>
<div class="slide-btn">
<a href="#" class="hover">1</a>
<a href="#" class="hover">2</a>
<a href="#" class="hover">3</a>
<a href="#" class="hover">4</a>
<a href="#" class="hover">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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Tags: 实现 JavaScript 图片
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