vnpy-2.1.0-py3.7-linux-x86_64.egg/vnpy/app/option_master/base.py", line 169, in calculate_option_impv
underlying_price = self.underlying.mid_price
AttributeError: 'NoneType' object has no attribute 'mid_price'
奇怪了,这个报错莫名其妙~~~
难道 是在 set_underlying 之前调用到了calculate_option_impv??