JavaScript实现将当前的时间向前推三个月

function get3MonthBefor(){ var resultDate,year,month,date,hms; var currDate = new Date(); year = currDate.getFullYear(); month = currDate.getMonth()+1; date = currDate.getDate(); hms = currDate.getHours() + ':' + currDate.getMinutes() + ':' + (currDate.getSeconds() < 10 ? '0'+currDate.getSeconds() : currDate.getSeconds()); switch(month) { case 1: case 2: case 3: month += 9; year--; break; default: month -= 3; break; } month = (month < 10) ? ('0' + month) : month; resultDate = year + '-'+month+'-'+date+' ' + hms; return resultDate; }

 

感谢原作者:lhx222 (高级程序员)