作业2---Taobao Commodity Show

2018-02-26 本文已影响0人不惧黑夜
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
    <link rel="stylesheet" href="tea_reset.css">
    <style>
        .show{
            margin: 50px auto 0;
            border: 1px solid #FF6300;
            width: 304px;
            height: 206px;
        }

        .show ul{
            display: inline-block;
            margin: 5px;
        }

        .show li{
            border: 1px solid #FFADAD;
            padding: 5px;
            width: 40px;
            height: 16px;
            line-height: 16px;
            text-align: center;
        }
        
        .show li.active{
            background-color: #FF4A6B;
            color: white;
        }
        
        .show li a{
            display: block;
            color: inherit;
            text-decoration: none;
        }

        .show img{
            vertical-align: top;
            margin: 5px -4px 0;
        }
    </style>

    <script>
        window.onload = function () {
            var oImg = document.getElementsByTagName('img');
            var oLis = document.getElementsByTagName('li');

            for (var i = 0; i < oLis.length; i++){
                oLis[i].index = i;
            }

            var activeIndex = 0;//记录当前定时显示的商品序号
            var autoChange = function () {
                for(var i of oLis){
                    i.className = '';
                }

                
                if(activeIndex < 7){
                    var newIndex = activeIndex;
                }else {
                    var newIndex = 20 - activeIndex;//为了实现 U 型的播放顺序
                }

                oLis[newIndex].className = 'active';
                oImg[0].src = `${newIndex + 1}.png`;

                activeIndex++;
                activeIndex %= oLis.length;//实现循环播放
            }

            var timerID = setInterval(autoChange,1000);

            for(var i of oLis){
                i.onmouseover = function () {
                    clearInterval(timerID);

                    for(var i of oLis){
                        i.className = '';
                    }

                    this.className = 'active';
                    oImg[0].src =  `${this.index + 1}.png`;
                }

                i.onmouseout = function () {
                    for(var i of oLis){
                        i.className = '';
                    }
                    timerID = setInterval(autoChange,1000);
                }
            }
        }
    </script>
</head>
<body>
<div class="show">
    <ul>
        <li><a href="#">连衣裙</a></li>
        <li><a href="#">雪纺</a></li>
        <li><a href="#">T恤</a></li>
        <li><a href="#">铅笔裤</a></li>
        <li><a href="#">婚纱</a></li>
        <li><a href="#">外套</a></li>
        <li><a href="#">连体裤</a></li>
    </ul>
    <img src="1.png">
    <ul>
        <li><a href="#">包包</a></li>
        <li><a href="#">凉鞋</a></li>
        <li><a href="#">单鞋</a></li>
        <li><a href="#">太阳镜</a></li>
        <li><a href="#">丝袜</a></li>
        <li><a href="#">帆布鞋</a></li>
        <li><a href="#">情侣装</a></li>
    </ul>

</div>
</body>
</html>
作业2---Taobao Commodity Show

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