区块链量化合约交易所开发，永续合约交易所源码部署示例

def buy(self, amount):      if amount > 0:          self.buy_open_interest += amount          self.sell_open_interest -= amount          self.current_price = (self.buy_open_interest / self.sell_open_interest) * self.price_tick          print(f"BUY {amount} {self.symbol} at {self.current_price}")    def sell(self, amount):      if amount > 0:          self.sell_open_interest += amount          self.buy_open_interest -= amount          self.current_price = (self.sell_open_interest / self.buy_open_interest) * self.price_tick          print(f"SELL {amount} {self.symbol} at {self.current_price}")    def price_update(self):  【完整逻辑部署搭建可看我昵称】    # 随机生成价格波动，这里仅作示例，实际开发中需要实现更复杂的模型      delta = random.uniform(-0.01, 0.01)      self.current_price += delta * self.price_tick      print(f"Price update: {self.current_price}")    def liquidation(self):      # 计算多头和空头的保证金比例，如果低于一定比例则进行强制平仓  【完整逻辑部署搭建可看我昵称】    long_margin = self.buy_open_interest / self.current_price * self.leverage * 0.95      short_margin = self.sell_open_interest / self.current_price * self.leverage * 0.95      if long_margin < 1 or short_margin < 1:          # 强制平仓，按照当前价格进行买卖操作          if long_margin < 1:              amount = self.buy_open_interest / self.current_price * self.contract_size              self.sell(amount)              print(f"Liquidation SELL {amount} {self.symbol} at {self.current_price}")          if short_margin < 1:              amount = self.sell_open_interest / self.current_price * self.contract_size              self.buy(amount)              print(f"Liquidation BUY {amount} {self.symbol} at {self.current_price}")