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mc = MongoClient() # Mongo连接
dbMinute = mc[MINUTE_DB_NAME] # 数据库
dbDaily = mc[DAILY_DB_NAME]
dbTick = mc[TICK_DB_NAME]

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mongodb数据入库可参考https://www.vnpy.com/forum/topic/3203-bian-xie-pythonjiao-ben-shi-xian-shu-ju-ru-ku?page=1#pid11723

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