var date = new Date();
        var seperator1 = "-";
        var seperator2 = ":";
        var month = date.getMonth() + 1;
        var strDate = date.getDate();
        var hour=date.getHours();
        var minute=date.getMinutes();
        var second=date.getSeconds();
        if (month >= 1 && month <= 9) {
            month = "0" + month;
        }
        if (strDate >= 0 && strDate <= 9) {
            strDate = "0" + strDate;
        }
        if (hour >= 0 && hour <= 9) {
            hour = "0" + hour;
        }
        if (minute >= 0 && minute <= 9) {
            minute = "0" + minute;
        }
        if (second >= 0 && second <= 9) {
            second = "0" + second;
        }
        var currentdate = date.getFullYear() + month + strDate+hour+minute+second;
        console.log(currentdate.toString());
 

效果

引用文章一、文章二