random_function.py 文件源码

def add_months(sourcedate,months):
    month = sourcedate.month - 1 + months
    year = int(sourcedate.year + month / 12 )
    month = month % 12 + 1
    day = min(sourcedate.day,calendar.monthrange(year,month)[1])
    return datetime.date(year,month,day)