JS實現簡易圖片自動輪播
阿新 • • 發佈：2020-10-18
本文例項為大家分享了JS實現簡易圖片自動輪播的具體程式碼，供大家參考，具體內容如下
<!doctype html>
<html>
<head>
<meta charset="utf-8" />
<title>自動播放選項卡</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;
//實現自動播放
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="亞洲" class="active" id="pos"/>
<input type="button" name="" value="歐洲" />
<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">亞洲</div>
<div>歐洲</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：
精彩專題分享：jQuery圖片輪播 JavaScript圖片輪播 Bootstrap圖片輪播
以上就是本文的全部內容，希望對大家的學習有所幫助，也希望大家多多支援我們。