When doing data processing, the pandas version was too low. After updating the version using the command in cmd conda update pandas, I reinstalled a lot of things. As a result, when I open jupyter notebook, it is no longer my original directory!
Next we need to modify the default working path. We check the properties and find that the location has actually changed. We change it to the path we need.
method one
Modify default path
Method Two
See more: Summary: Three ways to modify the default working path of Jupyter Notebook in Anaconda
Spyder also seems to have some problems...
