//轉換為 yyyy-MM-dd HH:mm:ss
function getDate(date){
    var year = date.getFullYear();
    var month = date.getMonth()+1;//月份顯示0~11，需要加1
    //如果顯示的時間是小於10的，只顯示一位數，為了讓顯示的時間更加規範，新增一個判斷條件
    month = month <10?"0"+ month:month;
    var day = date.getDate();
    day = day< 10?"0"+day:day;
    var hour = date.getHours();
    hour = hour<10?"0"+hour:hour;
    var minute = date.getMinutes();
    minute = minute<10?"0"+minute:minute;
    var second = date.getSeconds();
    second = second<10?"0"+second:second;        
    var dateTime = year +"-"+month+"-"+day+" "+hour+":"+minute+":"+second;
    return dateTime;
 }
//輸入結果，顯示在日誌裡面
console.log(getDate(date));