JS 得到yy-MM--dd HH:mm:ss格式时间代码

/**
 * 获取当前时间24小时制
 * yyyy-MM-dd HH:mm:ss
 */
function getDate24Hours(){
var myDate = new Date();
var years = myDate.getFullYear();
var month = myDate.getMonth();
var day = myDate.getDay();
var hours = myDate.getHours();
var minutes = myDate.getMinutes();
var seconds = myDate.getSeconds();
if(month < 10 ){
month = "0" + month;
}
if(day < 10 ){
day = "0" + day;
}
if(hours < 10){
hours = "0" + hours;
}
if(minutes <10 ){
minutes = "0" + minutes;
}
if(seconds <10 ){
seconds = "0" + seconds;
}
var time = years+'-'+month+'-'+day+' '+hours+':'+minutes+':'+seconds
console.log("24-hours:"+time);
return time;
}