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简单实现js无缝滚动效果

本文实例为大家分享了js无缝滚动效果的具体代码,供大家参考,具体内容如下

<!DOCTYPE html>
<html lang="en">
<head>
 <meta charset="UTF-8">
 <title>Document</title>
 <style>
  *{
   margin: 0;
   padding: 0;
  }
  ul{
   list-style: none;
  }
  img{
   vertical-align: top; /*消除3px的距离*/
  }
  .box{
   width: 600px;
   height: 200px;
   margin: 100px auto;
   overflow: hidden;
   position: relative;
   border: 1px solid red;
  }
  ul{
   width: 400%;
   position: absolute;
   left: 0;
   top: 0;
  }
  ul li{
   float: left;
  }
 </style>
 <script> 
 window.onload = function(){
  function $(id){ return document.getElementById(id); } 
  var timer = null;
  var num = 0;
  timer = setInterval(autoPlay,20);
  function autoPlay(){
   num--;
   if(num<=-1200){ 
     num = 0;
   }
   $("picBox").style.left = num + "px";   
  }
  $("picBox").onmouseover = function(){
   clearInterval(timer);
  }
  $("picBox").onmouseout = function(){
   timer = setInterval(autoPlay,20);
  }
 }
 </script>
</head>
<body>
 <div class="box" id="scroll">
  <ul id="picBox">
   <li><img src="/UploadFiles/2021-04-02/01.jpg">

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。