js 今天日期往前推12天，组成数组

var curMdList = []

                for(var i=0;i<12;i++){

                    var yyyy = Number(formatDate(new Date(),'yyyy'))

                    var MM = Number(formatDate(new Date(),'MM'))

                    var dd = Number(formatDate(new Date(),'dd'))-i

                    if(dd<=0){

                        if(MM-1 <= 0){

                            MM = MM-1+12 

                        }else{

                            MM = MM-1

                            if(MM==1||MM==3||MM==5||MM==7||MM==8||MM==10||MM==12){

                                dd = dd+31

                            }else if(MM==4||MM==6||MM==9||MM==11){

                                        dd = dd+30

                            }else if(MM==2){

                                if(yyyy%4==0&&yyyy%100!=0||yyyy%400==0){

                                    dd = dd+29

                                }else dd = dd+28    

                            }

                        }

                    }

                    curMdList.unshift(MM+'/'+dd)

                }

                console.log(curMdList,'curMdList')

curMdList 就是需要的数组