JS中格式化时间

    //格式化时间
    function getDate(dt) {
        // var dt = new Date();
        var year = dt.getFullYear();//获取年
        var month = dt.getMonth();//获取月
        var day = dt.getDay();//获取日
        var hours = dt.getHours();//获取时
        var minutes = dt.getMinutes();//获取分
        var second = dt.getSeconds();//获取秒
        month = month < 10 ? "0" + month : month;
        day = day < 10 ? "0" + day : day;
        hours = hours < 10 ? "0" + hours : hours;
        minutes = minutes < 10 ? "0" + minutes : minutes;
        second = second < 10 ? "0" + second : second;
        return year + "年" + month + "月" + day + "日" + hours + ":" + minutes + ":" + second
    }

    var dt = new Date();
    document.write(getDate(dt));

//结果
2019年02月01日19:06:35