def ooc(self):
    ''' Open or close
        回傳 True：開市，False：休市。
    '''
    if self.ptime.date() in self.ocdate['close']: ## 判對是否為法定休市
      return False
    elif self.ptime.date() in self.ocdate['open']: ## 判對是否為法定開市
      return True
    else:
      ''' 判斷是否為每週開休市 '''
      if self.ptime.weekday() <= 4:
        return True
      else:
        return False