• js实现网页上图片循环播放


    <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN""http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
    <html xmlns="http://www.w3.org/1999/xhtml">
    <head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
    <title>js</title>
    <meta name="viewport" content="width=device-width, initial-scale=1.0, minimum-scale=1.0, maximum-scale=1.0, 
    user-scalable=no"/>
    <style>
    *{margin: 0;padding: 0;}
    #div1{
        position: relative;border: 1px solid gray;
         100%;
        margin: 20px auto;
        height: 800px;
        overflow: hidden;
    }
    #div1 ul{
        position: absolute;
        left: 0;
    }
    #div1 a{
        position: absolute;
        z-index: 2;
        text-decoration: none;
        top: 45%;
        display: none;
    }
    #div1 ul li{
        padding: 5px;
        list-style: none;
         720px;
        height: 100%;
        float: left;
    }
    #div1 ul li img{
         100%;
        height: 100%;
    }
    </style>
    </head>
    <body>
    <script type="text/javascript">
        window.onload = function(){
            var oDiv = document.getElementById('div1');
            var oUl = oDiv.getElementsByTagName('ul')[0];
            var aLi = oUl.getElementsByTagName('li');
            var aA = oDiv.getElementsByTagName('a');
            var iSpeed = 1;//正左负右
            var timer = null;
            //计算ul的宽为所有li的宽的和;
            oUl.innerHTML += oUl.innerHTML+oUl.innerHTML;
            oUl.style.width = aLi[0].offsetWidth*aLi.length+'px';
            function Slider(){
                if (oUl.offsetLeft<-oUl.offsetWidth/2) {
                    oUl.style.left = 0;
                }else if(oUl.offsetLeft>0){
                    oUl.style.left =-oUl.offsetWidth/2+'px';
                }
                oUl.style.left = oUl.offsetLeft-iSpeed+'px';//正负为方向
            }
            timer =setInterval(Slider,30);
            aA[0].onclick = function(){
                iSpeed = 1; //控制速度的正负
            }
            aA[1].onclick = function(){
                iSpeed = -1;
            }
            oDiv.onmouseover = function(){
                clearInterval(timer);
            }
            oDiv.onmouseout = function(){
                timer =setInterval(Slider,30);
            }
        };
    </script>
    <div id="div1">
        <ul>
            <li><img src="http://192.168.0.239/disk/jx/1.jpg"></li>
            <li><img src="img/3.png"></li>
            <li><img src="img/4.png"></li>
            <li><img src="img/5.png"></li>
        </ul>
        <a href="javascript:;" style="left:10px;"><</a>
        <a href="javascript:;" style="right:10px;">></a>
    </div>
    </body>
    </html>
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  • 原文地址:https://www.cnblogs.com/pu369/p/11103870.html
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