begin_date = str(self.get_argument('flight_date1'))
end_date = str(self.get_argument('flight_date2'))
# 将前台传入的时间区间转化为一个列表
date_list = []
# begin_date = '2017-05-08'
# end_date = '2017-05-15'
begin_date = datetime.datetime.strptime(begin_date, "%Y-%m-%d")
end_date = datetime.datetime.strptime(end_date, "%Y-%m-%d")
while begin_date <= end_date:
date_str = begin_date.strftime("%Y-%m-%d")
date_list.append(date_str)
begin_date += datetime.timedelta(days=1)
