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最简单的轮播

最简单的轮播

作者: 前端架构师陈龙威 | 来源:发表于2017-08-24 16:41 被阅读0次

从 作者:饥人谷_范悦 那看到的 链接:www.jianshu.com/p/5c7c427eb557
个人缩减了下,如下:


css:


       *{
            padding:0;
            margin:0;
        }
        li{
            list-style:none;
            float:left;
        }
        .content{
            width:600px;
            height:270px;
            margin:100px auto;
        }
        .content-box{
            width:480px;
            height:270px;
            margin:0 auto;
            position:relative;
            overflow:hidden;
        }
        ul{
            width:2400px;
        overflow:hidden;
            position:absolute;
            left: -480px;
        }
        li img{
            width:480px;
            height: 270px;

        }

html:

 <div class="content">
        <div class="content-box">
            <ul>
                 <li>![](https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1503574592707&di=a3d3ae19930d2c453ec58728e4d6a69a&imgtype=0&src=http%3A%2F%2Fimg.tuku.cn%2Ffile_big%2F201504%2F6fb5de53c5ef451980da0632d6b6b83a.jpg)</li>//图3
                <li>![](https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1503574592707&di=50cb6b3fc2f467b197a42e7fa276d17f&imgtype=0&src=http%3A%2F%2Fimg.tuku.cn%2Ffile_big%2F201506%2F5c7a4b9402034d778d3d8886199aebdb.jpg)</li>//图1
                <li>![](https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1503574592707&di=d133c2777c2e04c404663e00a3fd49cb&imgtype=0&src=http%3A%2F%2Fimgstore.cdn.sogou.com%2Fapp%2Fa%2F100540002%2F673510.jpg)</li>//图2
                <li>![](https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1503574592707&di=a3d3ae19930d2c453ec58728e4d6a69a&imgtype=0&src=http%3A%2F%2Fimg.tuku.cn%2Ffile_big%2F201504%2F6fb5de53c5ef451980da0632d6b6b83a.jpg)</li>//图3
                <li>![](https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1503574592707&di=50cb6b3fc2f467b197a42e7fa276d17f&imgtype=0&src=http%3A%2F%2Fimg.tuku.cn%2Ffile_big%2F201506%2F5c7a4b9402034d778d3d8886199aebdb.jpg)</li>//图1
            </ul>
      </div>
 </div>

js:

//此处记得引入jquery cdn:<script src="http://libs.baidu.com/jquery/2.0.0/jquery.min.js"></script>
       var n=2;//由于第一张图是实际是最后1张,是用于从最后一张到第一张过度用,所以n=2,从第二张图开始

        $(document).ready(function () {//计时器,用于自动轮播
                var timer=setInterval(function () {
                    tonext();
                    console.log(n);
                },1000)
            }
        )
//从左向右运动的函数,每次调用向右前进一张图片距离,当到达第四张(也就是给观众看的第三张),则left跳回第一张(也就是和它一样的那张,不过排在开头),由于两张图片一样,可以达到无法察觉的效果
        function  tonext() {
            $('ul').animate({left:-480*n+"px"},function () {
                n++;
                if(n==4){$('ul').css({left:0});n=1}
            })
        }

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