DDR爱好者之家

原生JS实现层叠轮播图
站长资源 2024/11/27 佚名
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DDR爱好者之家 Design By 杰米

又是轮播？没错，换个样式玩轮播。

原生JS实现层叠轮播图

HTML:

<!DOCTYPE html>
<html lang="en">
<head>
 <meta charset="UTF-8">
 <title>wtf</title>
</head>
<body>
 <div class="container">
 <div class="box">
 <img class="front" src="/UploadFiles/2021-04-02/A.jpg">


CSS:





 <style>
 .box {width: 1200px; height: 300px; transform-style: perserve-3d; margin: 50px auto; position: relative;}
 .box img{width:600px; position: absolute; top: 60px; transition:all .3s linear;}
 
 .box:hover .btn{opacity: 1;}

 .front {left: 0px;}
 .back {left: 600px;} 
 .active {left: 300px; transform: scale(1.5); z-index: 10;}
 
 .btns .btn {width: 60px; height: 60px; display: block; position: absolute; background-color: rgba(0,0,0,.5); font-size: 50px; font-family: "微软雅黑"; color:rgba(255,255,255,.5); line-height: 55px; text-align: center; cursor: pointer; z-index: 100; opacity: 0; transition:opacity .3s linear;} 
 .btns .btn:first-child {top: 125px;}
 .btns .btn:last-child {top: 125px; right: 0px;}
 </style>







JS:





 <script>
 onload = function(){
 var btns = document.getElementsByClassName('btn'),
  imgs = document.getElementsByClassName('box')[0].getElementsByTagName('img');

 var index = 2,
  front = 0,
  back = 0,
  offset = false,
  timer = setInterval(timer,5000);
  


 for(var i=0;i<btns.length;i++){
 (function(i){
  btns[i].onclick = function(){click(i)};
 })(i);

 btns[i].onmouseover = function(){
  offset = true;
 }
 btns[i].onmouseout = function(){
  offset = false;
 }
 }

 for(var i=0;i<imgs.length;i++){
 imgs[i].onmouseover = function(){
  offset = true;
 }
 imgs[i].onmouseout = function(){
  offset = false;
 }
 }

 function timer(){
 console.log(offset)
 if(offset){
  return;
 }
 else{
  click(1)
 }
 }

 function click(x){
 imgs[index].setAttribute('class','');
 if(x === 0){
  if(--index < 0){
  index = --imgs.length;
  }
  front = back = index;
  if(++front > --imgs.length){front = 0}
  if(--back < 0){back = --imgs.length}
  imgs[front].style.zIndex = '1';
  imgs[back].style.zIndex = '0';
 }
 else{ 
  if(++index > --imgs.length){
  index = 0; 
  }
  front = back = index;
  if(++front > --imgs.length){front = 0}
  if(--back < 0){back = --imgs.length}
  imgs[front].style.zIndex = '0';
  imgs[back].style.zIndex = '1';
 }
 imgs[index].style.zIndex = '10';
 imgs[front].setAttribute('class','front')
 imgs[back].setAttribute('class','back') 
 imgs[index].setAttribute('class','active');
 }
 }
 </script>






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


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DDR爱好者之家 Design By 杰米
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