code: def quote5(self, market=47, symbol="IF1709"):
          '''
          查询五档行情
  
          :return: pd.dataFrame or None
          '''
          with self.client.connect(*self.bestip):
              data = self.client.get_instrument_quote(market, symbol)
              return self.client.to_df(dataf quote5(self, market=47, symbol="IF1709"):
          '''
          查询五档行情
  
          :return: pd.dataFrame or None
          '''
          with self.client.connect(*self.bestip):
              data = self.client.get_instrument_quote(market, symbol)
              return self.client.to_df(data)
docs: 查询五档行情
  
          :return: pd.dataFrame or None