function getNowTime(){
Number.prototype.Totwo = function(){
return ('0' + this).slice(-2)
}
var time = new Date();
var y = time.getFullYear().Totwo();
var m = (time.getMonth()+1).Totwo();
var d = time.getDate().Totwo();
var h = time.getHours().Totwo();
var mn = time.getMinutes().Totwo();
var s = time.getSeconds().Totwo();
delete Number.prototype.Totwo;
return y+'-'+m+'-'+d+' '+h+':'+mn+':'+s
}
console.log(getNowTime())