无缝轮播的案例 及css3无缝轮播案例

  无缝轮播的案例:

  <!DOCTYPE html>
  <html>
  <head>
    <meta charset="UTF-8">
    <title>无缝轮播</title>
    <style>
      *{
        margin:0;
        padding:0;
      }
      div{
        width:1000px;
        height:200px;
        position:relative;
        top:20px;
        left:100px;
        border:red 5px solid;
        overflow: hidden;
      }
      ul{
        width:2000px;
        height:200px;
        list-style: none;
        position:absolute;
        top:0;
        left:-1020px;
      }
      ul>li{
        width:200px;
        height:200px;
        float:left;
      }
    </style>
  </head>
  <body>
    <div>
      <ul id="ul">
        <li style="background:pink"></li>
        <li style="background:blue"></li>
        <li style="background:orange"></li>
        <li style="background:black"></li>
        <li style="background:green"></li>
        <li style="background:pink"></li>
        <li style="background:blue"></li>
        <li style="background:orange"></li>
        <li style="background:black"></li>
        <li style="background:green"></li>
      </ul>
    </div>
  </body>
  </html>
  <script>
    var ul=document.getElementById("ul")
    var t=null;
    var num=1;
    t=setInterval(function(){
      if (ul.offsetLeft<-ul.offsetWidth/2)
        {
        ul.style.left=0+"px";
        }
      ul.style.left=(ul.offsetLeft-num)+"px";
    },100/6)
  </script>

  无缝轮播的解析:
    1.无论什么时候,ul.offsetleft++ 无论什么时候,他的ul都要走
    2.初始值,设立,直接设到第二板块那里
    3.可以理解成,每次只走第二板块,因为每次需要第二板块 去覆盖掉,第一次模块走的东西
    4.造成的视觉错觉

 

  css3无缝轮播案例 

<!doctype html>
<html>
<head>
<meta charset="UTF-8">
<meta name="viewport"
content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>Document</title>
<script src="rem插件.js"></script>
<style>
*{
margin:0;
padding:0;
}
html{
font-size:100px;
overflow-x:hidden;
}
body{
font-size:14px;
}
div,ul,li,img{
margin:0;
padding:0;
}
.box{
width:100%;
height:1.17rem;
}
.clearfix:after{
content:"";
display:block;
height:0;
visibility:hidden;
clear:both;
}
.content{
width:500%;
height:1.17rem;
}
.content div{
width:20%;
height:1.17rem;
float:left;
}

</style>
</head>
<body>
<div class="box">
<div class="content">
<div style="background:#cccccc"></div> <!-- 第三张-->
<div style="background:#ffb72b"></div> <!-- 第一张-->
<div style="background:lightblue"></div> <!-- 第二张-->
<div style="background:#cccccc"></div> <!-- 第三张-->
<div style="background:#ffb72b"></div> <!-- 第一张-->
</div>
</div>
</body>
</html>
<script>
var t=null,index=1;
var box=document.querySelector(".box");
var wid=box.offsetWidth;
var content=document.querySelector(".content");
content.style.transform="translateX(-"+(wid)+"px)";
t=setInterval(function(){
index++;
addtransition()
content.style.transform="translateX(-"+(wid*index)+"px)";
},2000)
//过度函数
function addtransition(){
content.style.transition="all .5s linear";
content.style.webkitTransition="all .5s linear";
}
function removetransition(){
content.style.transition="none";
content.style.webkitTransition="none";
}
content.addEventListener("transitionend",function(){
if(index>3){
index=1;
removetransition()
content.style.transform="translateX(-"+(wid*index)+"px)";
}
})
</script>
posted on 2019-03-28 15:10  Web引领者  阅读(419)  评论(0编辑  收藏  举报