原生JS写轮播 

<!DOCTYPE html>
<html>
<head lang="en">
    <meta charset="UTF-8">
    <title></title>
    <style>
        *{
            margin:0;
            padding: 0;
        }
        #wrap{
            width: 411px;
            height: 449px;
            overflow: hidden;
            border: 1px solid red;
            margin: 0 auto;
        }
        #ul{
            width: 1233px;
            list-style: none;
        }
        li{
            float: left;
        }
        img{
            position: relative;
            top: 0;
            left: 0;
            border: 1px solid red;
        }
    </style>
</head>
<body>
<div id="wrap">
    <ul id="ul">
        <li><img src="gallery-img1.png" /></li>
        <li><img src="gallery-img2.png" /></li>
        <li><img src="gallery-img3.png" /></li>
    </ul>
</div>
</body>
</html>
<script>
    var ul = document.getElementById("ul");
    var li = document.getElementsByTagName("li");
//     console.log(li.length);

    for(var i = 0; i<li.length;i++){
        li[i].style.marginLeft="0";
    }
    var runID = setInterval(run,50);
    function run(){
        var liOne = li[0];
        var left = parseInt(liOne.style.marginLeft);
        liOne.style.marginLeft = left - 15 +"px";
//        console.log(img.style.left);
        if(left<=-411){
            liOne.style.marginLeft="0";
            ul.removeChild(liOne);
            ul.appendChild(liOne);
        }
    }
</script>
posted @ 2015-11-22 20:45  雨落无痕忄  阅读(228)  评论(0)    收藏  举报