<script src="http://www.mamicode.com/js/jquery-1.8.3.min.js"></script>        <script>            $(function () {                setInterval(time, 1000);//一秒            });            var count = 4;            function time() {                $("#time").text(count); //修改页面                if (count == 0) {                    clearInterval();                    window.location = "跳转页面";                    return;                }                count--            }        </script> <div style="text-align: center;">            <a id="time" style="color: red">5</a>秒后自动跳转我的订单        </div>