js运动 缓冲运动

时间：2023-01-13 23:39:11
<!DOCTYPE HTML>

<HTML>

    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">

    <title></title>

    <style>

        *{

            margin:0;

            padding:0;

        }

        #div1{

            height:100px;

            width: 100px;

            background: red;

            position:absolute;

            margin-left: 5px;

        }

    </style>

    <script>

    window.onload = function ()

    {

        var odiv = document.getElementById('div1');

        var oinput = document.getElementsByTagName('input')[0];

        oinput.onclick = function ()

        {

            ToMove(odiv,500);

        }

        function ToMove(obj,goal)

        {

            clearInterval(obj.timer);

            obj.timer = setInterval(function(){

                var icur = obj.offsetLeft;

                if(icur >= goal)

                {

                    clearInterval(obj.timer);

                }

                else

                {

                    var speed = (goal - obj.offsetLeft) / 8;

                    speed = speed > 0 ? Math.ceil(speed): Math.floor(speed);

                    obj.style.left = obj.offsetLeft + speed + 'px';

                }

            },50);

        }

    }

    </script>

    <body>

        <input type="button" value = "提交">

        <div id="div1"></div>

    </body>

</HTML>

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