在学习36“载入csv历史数据”的时候按照课程的代码敲了一遍，运行时出现了错误：-code text hereE:\veighna_studio\python.exe E:\Users\win\PycharmProjects\mypro001\pythonProject\mypro1.py
Traceback (most recent call last):
File "E:\Users\win\PycharmProjects\mypro001\pythonProject\mypro1.py", line 37, in <module>
get_database().save_bar_data(bars)
File "E:\veighna_studio\lib\site-packages\vnpy_sqlite\sqlite_database.py", line 167, in save_bar_data
d["exchange"] = d["exchange"].value
AttributeError: 'str' object has no attribute 'value'
完成数据插入，起始点2020-01-02 09:30:00,结束点2020-01-02 09:30:00,，总数据量1

请教这是怎么回事？

可参考https://www.vnpy.com/forum/topic/7825-30tian-jie-suo-pythonliang-hua-kai-fa-ke-cheng-zhong-yu-xian-ban-ben-2-6-0-bu-fu-he-de-di-fang

好的，谢谢，解决了