前端小白案例-商品轮播图制作

Posted 2020-10-27

知识点：html加CSS布局、html加css布局思维，定位、浮动详解。

html代码：

<div class="banner">
        <div class="pic">
            <ul id="pic">
                <li style="background-image:url(‘images/VIP_img1.jpg‘);left:0;"></li>
                <li style="background-image:url(‘images/VIP_img2.jpg‘)"></li>
                <li style="background-image:url(‘images/VIP_img3.jpg‘)"></li>
                <li style="background-image:url(‘images/VIP_img4.jpg‘)"></li>
                <li style="background-image:url(‘images/VIP_img5.jpg‘)"></li>
            </ul>
        </div>
        <div class="text">
            <ul id="text-list">
                <li>都市丽人品牌日<span>|</span></li>
                <li>都市丽人集团年度钜献<span>|</span></li>
                <li>哈森集团冬靴节 满498减50<span>|</span></li>
                <li>运动大牌 最高满298减60<span>|</span></li>
                <li>爱在唯品家 最高满298减80</li>
            </ul>
        </div>
        <div class="car"></div>
    </div>

css代码：

        <style>
        *{margin:0;padding:0;}
        .banner{
            width:1146px;
            height:440px;
            padding:15px 15px 0 15px;
            background:#fff;
            border:1px solid #eaeaea;
            margin:50px auto;
            position:relative;
        }
        .banner .pic{
            width:1146px;
            height:400px;
            position:relative;
            overflow:hidden;
        }
        .banner .pic ul li{
            list-style:none;
            width:100%;
            height:400px;
            position:absolute;
            top:0;
            left:100%;
        }
        .banner .text ul li{
            list-style:none;
            width:229px;
            text-align:center;
            float:left;
            color:#666;
            font-size:12px;
            font-family:‘微软雅黑‘;
            line-height:35px;
            cursor:pointer;
        }
        .banner .text ul li span{
            float:right;
            color:#ddd;
        }
        .banner .car{
            width:229px;
            height:3px;
            background:#e6057d;
            position:absolute;
            bottom:-3px;
            left:15px;
        }
        </style>

javascript代码：

    <script src="js/move.js"></script>
    <script>
    var Car = document.getElementsByClassName(‘car‘)[0];//运动条
    var oPic = document.getElementById(‘pic‘);
    var aPicli = oPic.getElementsByTagName(‘li‘);//图片序列
    var otext = document.getElementById(‘text-list‘);
    var otextli = otext.getElementsByTagName(‘li‘);//文字序列
    var index = 0;
    for(var i=0;i<otextli.length;i++){
        otextli[i].index = i;
        otextli[i].onclick = function(){
            var lastIndex = index;
            var nowLeft = this.index*229+15;
            var left = 1146;
            index = this.index;
            //运动条动画
            move( Car , "left" , nowLeft , 20 );

            if ( index > lastIndex )
            {
                left = -left;
            };
            aPicli[index].style.left = -left+‘px‘;
            //移出图片动画
            move( aPicli[lastIndex] , ‘left‘ , left , 50 );
            //移入图片动画
            move( aPicli[index] , ‘left‘ , 0 , 50 );
        }
    };
    </script>