<script type="text/javascript">    //shakenum:抖动的次数，shakeDistance：抖动的距离    jQuery.fn.Shake = function (shakenum , shakeDistance) {        this.each(function () {            var jSelf = $(this);            jSelf.css({ position: ‘relative‘ });            for (var x = 1; x <= shakenum; x++) {                jSelf.animate({ left: (-shakeDistance) },50)                .animate({ left: shakeDistance }, 50)                .animate({ left: 0 }, 50);            }        });        return this;    }</script><script type="text/javascript">$(function () {    $(‘#btn‘).click(function () {        $(this).Shake(2, 10, 400);    });});</script>

<input type="button" value=http://www.mamicode.com/"抖动" id="btn" />