通过ajax获取一个多位数，当容器显示在屏幕可视区时，让数字以滚动的形式显示

{

    "data": "268"

}

json数据

<!DOCTYPE html>

<html>

<head lang="en">

    <meta charset="UTF-8">

    <title></title>

    <style>

        *{

            margin:0;

            padding:0;

        }

        ul,li{

            list-style:none;

        }

        .outer{

            position:relative;

            width:100px;

            height:32px;

            margin:20px auto;

            background:#f1ab44;

            overflow:hidden;

        }

        .list{

            position:absolute;

            top:0;

            width:32px;

            background:#000;

            color:#fff;

            text-align:center;

        }

        .list li{

            height:32px;

            line-height:32px;

            font-size:26px;

        }

        .list1{

            left:0;

        }

        .list2{

            left:34px;

        }

        .list3{

            right:0;

        }

        .cc{

            height:1000px;

        }

    </style>

</head>

<body>

<div class="cc"></div>

<div class="outer">

    <ul class="list list1">

        <li>0</li>

        <li>1</li>

        <li>2</li>

        <li>3</li>

        <li>4</li>

        <li>5</li>

        <li>6</li>

        <li>7</li>

        <li>8</li>

        <li>9</li>

    </ul>

    <ul class="list list2">

        <li>0</li>

        <li>1</li>

        <li>2</li>

        <li>3</li>

        <li>4</li>

        <li>5</li>

        <li>6</li>

        <li>7</li>

        <li>8</li>

        <li>9</li>

    </ul>

    <ul class="list list3">

        <li>0</li>

        <li>1</li>

        <li>2</li>

        <li>3</li>

        <li>4</li>

        <li>5</li>

        <li>6</li>

        <li>7</li>

        <li>8</li>

        <li>9</li>

    </ul>

</div>

<div class="cc"></div>

</body>

<script src="jquery-1.11.3.min.js"></script>

<script>

    $(function(){

        move();

        function move(){

            var clientH = $(window).height(),

                    $scroll = $(window).scrollTop(),

                    $height = $(".outer").height(),

                    $off = $(".outer").offset().top;

            if ($off + $height - $scroll >$height  && $off + $height - $scroll <= clientH) {

                $.post("test1.json",function(data){

                    var flag=32,data1=data.data,ary=data1.split("");

                    if(ary.length == 1){

                        ary.unshift("0","0");

                    }else if(ary.length == 2){

                        ary.unshift("0");

                    }

                    var ary1=Number(ary[0]),ary2=Number(ary[1]),ary3=Number(ary[2]);

                   /* $(".list1").animate({top:-ary1*flag+"px"},ary1*200);

                    $(".list2").delay(ary1*500).animate({top:-ary2*flag+"px"},ary2*200);

                    $(".list3").delay(ary2*500).animate({top:-ary3*flag+"px"},ary3*200);*/

                    $(".list1").animate({top:-ary1*flag+"px"},500);

                    $(".list2").delay(500).animate({top:-ary2*flag+"px"},500);

                    $(".list3").delay(800).animate({top:-ary3*flag+"px"},500);

                    $("body").css("background","red")

                });

            }else{

                $(".list").each(function(){

                    $(this).stop(5000).css("top",0)

                });

                $("body").css("background","green");

            }

        }

        $(window).scroll(function () {

            move()

        });

    });

</script>

</html>

巴特西

通过ajax获取一个多位数，当容器显示在屏幕可视区时，让数字以滚动的形式显示

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