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  • 在hftrade模块获取历史数据时需要使用 ``` inst = context.instruments context.subscribe(inst) ``` 订阅相应股票 \ [https://bigquant.com/experimentshare/b1b29bdbe02e491398e8e5a3161ab8cd](https://bigquant.com/experimentshare/b1b29bdbe02e491398e8e5a3161ab8cd) \
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