导入数据总是时间报错怎么办？

Traceback (most recent call last):
File "C:\veighna_studio\lib\site-packages\vnpy_datamanager\ui\widget.py", line 226, in import_data
start, end, count = self.engine.import_data_from_csv(
File "C:\veighna_studio\lib\site-packages\vnpy_datamanager\engine.py", line 61, in import_data_from_csv
dt = datetime.strptime(item[datetime_head], datetime_format)
KeyError: 'datetime'

你的CSV文件里，没有datetime这列时间戳数据吧？