old_contents: #!/usr/bin/env python
  # -*- coding: utf-8 -*-
  #
  # Copyright 2017 Ricequant, Inc
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  #     http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  
  from rqalpha.interface import AbstractPriceBoard
  from rqalpha.utils.logger import system_log
  
  
  class StockRealtimePriceBoard(AbstractPriceBoard):
      def __init__(self, realtime_quotes_df=None):
          self.realtime_quotes_df = realtime_quotes_df
  
      def get_last_price(self, order_book_id):
          return self.realtime_quotes_df.loc[order_book_id]['last']
  
      def get_limit_up(self, order_book_id):
          series = self.realtime_quotes_df.loc[order_book_id]
          rate = 1.1
          if "ST" in series["name"]:
              rate = 1.05
          return series["prev_close"] * rate
  
      def get_limit_down(self, order_book_id):
          return tick_snapshot['limit_down']
  
      def get_a1(self):
          pass
  
      def get_b1(self):
          pass
  
new_contents: #!/usr/bin/env python
  # -*- coding: utf-8 -*-
  #
  # Copyright 2017 Ricequant, Inc
  #
  # Licensed under the Apache License, Version 2.0 (the "License");
  # you may not use this file except in compliance with the License.
  # You may obtain a copy of the License at
  #
  #     http://www.apache.org/licenses/LICENSE-2.0
  #
  # Unless required by applicable law or agreed to in writing, software
  # distributed under the License is distributed on an "AS IS" BASIS,
  # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  # See the License for the specific language governing permissions and
  # limitations under the License.
  
  from rqalpha.interface import AbstractPriceBoard
  from rqalpha.utils.logger import system_log
  
  
  class StockRealtimePriceBoard(AbstractPriceBoard):
      def __init__(self, realtime_quotes_df=None):
          self.realtime_quotes_df = realtime_quotes_df
  
      def get_last_price(self, order_book_id):
          return self.realtime_quotes_df.loc[order_book_id]['last']
  
      def get_limit_up(self, order_book_id):
          return self.realtime_quotes_df.loc[order_book_id]['limit_up']
  
      def get_limit_down(self, order_book_id):
          return self.realtime_quotes_df.loc[order_book_id]['limit_down']
  
      def get_a1(self, order_book_id):
          return self.realtime_quotes_df.loc[order_book_id]['a1_p']
  
      def get_b1(self, order_book_id):
          return self.realtime_quotes_df.loc[order_book_id]['b1_p']
  
subject: implement a1 b1