JS实现简易图片自动轮播

本文实例为大家分享了JS实现简易图片自动轮播的具体代码,供大家参考,具体内容如下

<!doctype html>
<html>
 <head>
 <meta charset=\"utf-8\" />
 <title>自动播放选项卡</title>
 <style>
 *{
 margin:0;
 padding:0;
 }
 
 .box{
 width:600px;
 height:400px;
 border:1px solid red;
 margin:100px auto;
 position:relative;
 }
 
 a{
 font-size:40px;
 position:absolute;
 text-decoration:none;
 top:-10px;
 }
 #prev{
 
 left:0;
 }
 #next{
 
 right:0;
 
 }
 #pos{
 margin-left:30px;
 }
 input{
 width:90px;
 height:40px;
 float:left;
 outline:none;
 border:0;
 }
 .box div{
 width:600px;
 height:400px;
 background:skyblue;
 text-align:center;
 line-height:300px;
 font-size:100px;
 font-weight:bold;
 text-shadow:5px 5px 5px #f90;
 display:none;
 }
 
 .box .show{
 display:block;
 }
 .box .active{
 width:88px;
 color:#fff;
 font-size:18px;
 font-weight:bold;
 background:#f90;
 }
 </style>
 <script>
 window.onload = function()
 {
 var oBox = document.getElementById(\'box\');
 var oPrev = document.getElementById(\'prev\');
 var oNext = document.getElementById(\'next\');
 var aBtn = document.getElementsByTagName(\'input\');
 var aDiv = oBox.getElementsByTagName(\'div\');
 var oNow = 0;
 
 for (var i=0;i<aBtn.length;i++) {
 aBtn[i].dataIndex = i;
 
 aBtn[i].onclick = function(){
 
 oNow = this.dataIndex;
 
 for (var i=0;i<aBtn.length;i++) {
 aBtn[i].className = \'\';
 aDiv[i].className = \'\';
 }
 this.className = \'active\';
 aDiv[this.dataIndex].className = \'show\';
 }
 }
 
 oPrev.onclick = prev;
 oNext.onclick = next;
 
 //实现自动播放
 var timer = setInterval(next , 1000);
 
 oBox.onmouseover = function()
 {
 clearInterval(timer);
 }
 
 oBox.onmouseout = function()
 {
 timer = setInterval(next , 1000);
 }
 
 
 function prev()
 {
 oNow--;
 if (oNow < 0) {
 oNow = aBtn.length-1;
 }
 tab();
 }
 
 function next()
 {
 oNow++;
 if (oNow > aBtn.length-1) {
 oNow = 0;
 }
 
 tab();
 
 }
 
 function tab()
 {
 for (var i=0;i<aBtn.length;i++) {
 aBtn[i].className = \'\';
 aDiv[i].className = \'\';
 }
 aBtn[oNow].className = \'active\';
 aDiv[oNow].className = \'show\';
 }
 
 
 }
 </script>
 </head>
 
 <body>
 <div class=\"box\" id=\"box\">
 <a href=\"javascript:;\" id=\"prev\">☜</a>
 <a href=\"javascript:;\" id=\"next\">☞</a>
 <input type=\"button\" name=\"\" value=\"亚洲\" class=\"active\" id=\"pos\"/>
 <input type=\"button\" name=\"\" value=\"欧洲\" />
 <input type=\"button\" name=\"\" value=\"非洲\" />
 <input type=\"button\" name=\"\" value=\"北美洲\" />
 <input type=\"button\" name=\"\" value=\"南美洲\" />
 <input type=\"button\" name=\"\" value=\"大洋洲\" />
 <div class=\"show\">亚洲</div>
 <div>欧洲</div>
 <div>非洲</div>
 <div>北美洲</div>
 <div>南美洲</div>
 <div>大洋洲</div>
 </div>
 </body>
</html>

展示效果:

JS实现简易图片自动轮播

精彩专题分享:jQuery图片轮播 JavaScript图片轮播 Bootstrap图片轮播

以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持免费资源网。

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