tbpy订阅tick数据自动中断

# encoding utf-8 import imp from pickle import NONE import tbpy import sys import datetime as dt from datetime import datetime # 自定义策略，须继承 tbpy.IStrategy class MyStrategy(tbpy.IStrategy): #策略的初始化：传入最大持仓、撤单时间、账户 ID、合约代码 def __init__(self, interval_secs, account_id, symbol): super().__init__('MyStrategy') self._side = 0 self._interval_secs = interval_secs self._account_id = account_id self._symbol = symbol self._account = None self._pos = None self._order_dict = {} self._time= None self.last_tick = None self.flag = 0 # 初始化事件函数：订阅 TICK、订阅账户、设置定时器、读取初始仓位 def on_init(self, context): ret = context.subscribe_tick(symbol=self._symbol) if ret is not None: print(ret) tbpy.exit() self._account = context.subscribe_account(account_id=self._account_id) if self._account is None: print(tbpy.get_last_err()) tbpy.exit() context.create_timer(interval_millsecs=1*1000) # BAR 事件函数 def on_bar(self, context, bars, symbol, flag): pass # TICK 事件函数：读取目前的持仓，根据规则发送委托。 def on_tick(self, context, tick): self.last_tick = tick # 定时器事件函数：委托超时撤单 def on_timer(self, context, id, millsecs): print(self.last_tick) if __name__ == '__main__': # TBPY 模块初始化 ret = tbpy.init() if ret is False: sys.exit() rb_main = tbpy.get_main_instrument(underlying_symbol='ss.SHFE') if rb_main is None: sys.exit() # 声明用户策略对象 strategy = MyStrategy(5, 'xxxx', rb_main.symbol) # 进入 tbpy 事件循环 tbpy.exe() tick数据接收几分钟后就程序就自动关闭了，日志也没有任何提示