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轮播图的无限循环滑动

轮播图的无限循环滑动

作者: w蜗牛w | 来源:发表于2016-11-13 19:20 被阅读0次

1.第一种做法:假如说有三张图片分别是a、b、c,我就再放三张图片还是之前的图片a、b、c,这样就有六张图了。然后定义一个ul标签,这个ul的宽度等于这六张图片的宽度,在css样式中我们让上述的ul标签的左边距为负的一个图片的宽度,
<code>

<!DOCTYPE html>
<html>
    <head>
        <meta charset="utf-8" />
        <title></title>
        <style>
             *{
                margin: 0;
                padding: 0;
             }
            .container{
                width: 250px;
                height: 164px;
                position: relative;
                background-color: pink;
                margin: 0 auto;
                margin-top: 100px;
                overflow: hidden;
                
            }
            ul{
                width: 1500px;
                height: 164px;
                list-style: none;
                display: block;
                position: absolute;
                left: -250px;
                /*margin-top: -17px;*/
                
            }
            ul li{
                float: left;
            }
            a{
                width: 28px;
                height: 62px;
                display: block;
                background-color: rgba(0,0,0,0.5);
                position: absolute;
                right: 0;
                top: 30%;
                font-size: 24px;
                color: ghostwhite;
                text-decoration: none;
                line-height: 62px;
                text-align: center;
                z-index: 100;
            }
        </style>
        <script src = "jquery-1.11.1.min.js"></script>
        <script>
            $(document).ready(function(){
                var leftMargin = -250;
                $("#btn").click(function(){
                    leftMargin -= 250;
                    var time = 1000; 
                    if(leftMargin ==-1250){
                        //  time=0;
                        //  leftMargin = -250;
                        // $("#move").animate({left:leftMargin + "px"},time);
                        leftMargin=-500;
                         time=1000;
                        $("#move").animate({left:leftMargin + "px"},time);
                    }
                    else{
                    $("#move").animate({left:leftMargin + "px"},time);
                    }
                });
            });
        </script>
    </head>
    <body>
    <div class = "container">
        <a href="#" id = "btn">></a>
     <ul id = "move">
     
        <li><img src = "img/34.jpg"/></li>
        <li><img src = "img/41.jpg"/></li>
        <li><img src = "img/42.jpg"/></li>
        
        <li><img src = "img/34.jpg"/></li>
        <li><img src = "img/41.jpg"/></li>
        <li><img src = "img/42.jpg"/></li>
     </ul>
    </div>  
    </body>
</html>


</code>

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