大家经常在网页中使用轮播效果,本文为大家分享的是一组图片轮播特效,希望大家喜欢
先看一眼效果图:
代码:
- <html>
- <head>
- <meta http-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 (var i = 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 (var i = 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>
- <div id="content">
- <input type="button" value="上一组" id="prev" />
- <input type="button" value="下一组" id="next" />
- <div class="left">
- <span>
- 图片数量加载中
- </span>
- <img />
- </div>
- <div class="right">
- <span>
- 图片数量加载中
- </span>
- <img />
- </div>
- </div>
- </body>
- </html>
来源: