很棒的一组js图片轮播特效的实现教程
先看一眼效果图：
代码：
| 代码如下 | |
<html> <head> <metahttp-equiv="Content-Type"content="text/html; charset=utf-8"/> <style> *{padding:0;margin:0;} #content{width:550px;height:300px;margin:50px auto;position:relative;} #content input{width:60px;height:30px;margin-right:10px;} #content div{diplay:inline-block;position:absolute;bottom:0;;border:1px solid #ccc;width:250px;height:250px;background:url(img/loader_ico.gif) no-repeat center #f1f1f1;} #content div.left{left:0;} #content div.right{right:0;} #content div span{display:inline-block;width:250px;height:30px;line-height:30px;background:#ccc;color:red;text-align:center;} #content div img {height:250px;width:250px;} </style> <script> window.onload = function () { var content = $('content'),prev = $('prev'),next = $('next'), left = $('left'),right = $('right'); var aSpan = content.getElementsByTagName('span'); var aImg = content.getElementsByTagName('img');
var arr = [ ['img/1.png','img/2.png','img/3.png','img/4.png'], ['img/2.png','img/3.png','img/4.png'] ]; var num = [0, 0];
// 初始化 for ( var i = 0; i <aSpan.length; i++ ) { carousel(i); aImg[i].index= i; aImg[i].onclick=function() { if (num[this.index] === arr[this.index].length - 1) num[this.index] = -1; num[this.index]++; carousel(this.index); } }
// 下一组 next.onclick=function() { for ( vari=0; i < aSpan.length; i++ ) { if (num[i] === arr[i].length - 1) num[i] = -1; num[i]++; carousel(i); } } // 上一组 prev.onclick=function() { for ( vari=0; i < aSpan.length; i++ ) { if (num[i] === 0) num[i] = arr[i].length; num[i]--; carousel(i); } } function carousel(index) { aSpan[index].innerHTML=num[index] + 1 + ' / ' + arr[index].length; aImg[index].src=arr[index][num[index]]; }
function $(id) {return document.getElementById(id);} } </script> </head> <body> <divid="content"> <inputtype="button"value="上一组"id="prev"/> <inputtype="button"value="下一组"id="next"/> <divclass="left"> <span>图片数量加载中</span> <img/> </div> <divclass="right"> <span>图片数量加载中</span> <img/> </div> </div> </body> </html> | |
