JS 获取本地时间 并显示 （实时刷新）

//设置建议时间    $(document).ready(function () {        var show = document.getElementById("showTime");        setInterval(function () {            var time = new Date();            var m = time.getMonth() + 1;            var t = time.getFullYear() + "-" + m + "-"              + time.getDate() + " " + time.getHours() + ":"              + time.getMinutes() + ":" + time.getSeconds();            show.innerHTML = t;        }, 1000);    });