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JS仿hao123導(dǎo)航頁(yè)面圖片輪播效果

更新時(shí)間：2016年09月01日 11:57:23 作者：騎豬敲代碼

這篇文章主要介紹了JS仿hao123導(dǎo)航頁(yè)面圖片輪播效果，代碼簡(jiǎn)單易懂，非常不錯(cuò)，具有參考借鑒價(jià)值，感興趣的朋友一起學(xué)習(xí)吧

hao123網(wǎng)站大家都很熟悉吧，具體的效果不用我多說(shuō)吧，感興趣的朋友可以去參考效果圖，下面小編給大家分享下實(shí)現(xiàn)代碼思路，當(dāng)然大家可以根據(jù)需求適當(dāng)?shù)奶砑有薷膭h除代碼。

關(guān)鍵代碼如下所示：

<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>圖片輪播</title>
<style>
.warp{
width: 600px;
height: 750px;
position: relative;
margin:30px auto 0;
overflow: hidden;
}
#box{
width: 600px;
height: 750px;
position: absolute;
top: 0px;
left: 0px;
overflow: hidden;
/*overflow-x:auto;*/
}
#box #con{
width: 6000px;
height: 750px;
overflow: hidden;
}
#con img{
float: left;
width: 600px;
height: 750px;
}
#btnL{
position: absolute;
left: 0px;
top: 366px;
width: 36px;
height: 36px;
background: url(images/btnL.png) 0 0 no-repeat;
cursor: pointer;
}
#btnR{
position: absolute;
right: 0px;
top: 366px;
width: 36px;
height: 36px;
background: url(images/btnR.png) 0 0 no-repeat;
cursor: pointer;
}
#num{
position: absolute;
bottom: 10px;
left: 148px;
overflow: hidden;
list-style: none;
}
#num li{
float: left;
margin:0 5px;
font-size: 16px;
line-height: 25px;
height: 25px;
width: 25px;
background: #ccc;
text-align: center;
cursor: pointer;
}
#num li.select{
background-color: green;
color: white;
}
</style>
</head>
<body>
<div class="warp">
<div id="box">
<div id="con">
<img src="images/meinv1.jpg" alt="">
<img src="images/meinv2.jpg" alt="">
<img src="images/meinv3.jpg" alt="">
<img src="images/meinv4.jpg" alt="">
<img src="images/meinv5.jpg" alt="">
<img src="images/meinv6.jpg" alt="">
</div>
</div>
<div id="btnL"></div>
<div id="btnR"></div>
<ul id="num">
<li class="select">1</li>
<li>2</li>
<li>3</li>
<li>4</li>
<li>5</li>
<li>6</li>
</ul>
</div>
<script>
var box=document.getElementById('box');
var con=document.getElementById('con');
var imgs=con.getElementsByTagName('img');
var btnL=document.getElementById('btnL');
var btnR=document.getElementById('btnR');
var num=document.getElementById('num');
var lis=num.getElementsByTagName('li');
var timer1=null,timer2=null;
var imgw=imgs[0].clientWidth;
var x=0;
function imgScroll(){//圖片切換
var start=box.scrollLeft;
var end=imgw*x;
var change=end-start;
var minstep=0;
var maxstep=30;
var stepLength=change/maxstep;
clearInterval(timer2);
timer2=setInterval(function(){
minstep++;
// console.log(minstep);
if (minstep>=maxstep) {
clearInterval(timer2);
}
start+=stepLength;
box.scrollLeft=start;
},20) 
for (var i = 0; i < lis.length; i++) {
lis[i].className='none';
}
lis[x].className='select';
}
function move(){//默認(rèn)向左每隔3s滾動(dòng)
clearInterval(timer1);
timer1=setInterval(function(){
x++;
if (x>=imgs.length) {
x=0;
}
imgScroll();
for (var i = 0; i < lis.length; i++) {
lis[i].className='none';
lis[x].className='select';
}
},3000);
}
move();//啟動(dòng)默認(rèn)滾動(dòng)函數(shù)；
btnR.onclick=function(){
clearInterval(timer1);
x++;
if (x>=imgs.length) {
x=0;
}
imgScroll();
move();
}
btnL.onclick=function(){
clearInterval(timer1);
x--;
if (x<0) {
x=imgs.length-1;
}
imgScroll();
move();
}
for (var i = 0; i < lis.length; i++) {
lis[i].index=i;
lis[i].onclick=function(){
x=this.index;
imgScroll();
move();
}
}
</script>
</body>
</html>

以上所述是小編給大家介紹的JS仿hao123導(dǎo)航頁(yè)面圖片輪播效果，希望對(duì)大家有所幫助，如果大家有任何疑問(wèn)請(qǐng)給我留言，小編會(huì)及時(shí)回復(fù)大家的。在此也非常感謝大家對(duì)腳本之家網(wǎng)站的支持！

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