Andrew Chung

``` experta.__version__ ``` '1.9.4' please take note I used `Hero(status='occupied')` nor 'unoccupied'. Due to `Hero(status='occupied')` hadn't be defined above, it didn't exist. Could you try again, thanks.

Thanks for your quickly response, however, you may misunderstood my point. My concern is on the function of 'EXIST', I think as long as there is one or more facts...

yeah, indeed the facts `status="occupied"` didn't exist, but the fact `Hero(name="Death Defying Man")` always exists. Hence, I think no matter the order of these two patterns adjusted, the results should...

Thanks for your patient explanations. Yeah, I have not yet fully understood the function of "EXISTS", and fall into confusion about the descriptions in your reference file. > This CE...

感谢大佬答复，后期更新是否考虑默认值支持填入工段字段变量名，以此来实现多级联动？   设想level_2字段默认接收传入level_1的值，再进行展示。