After installing anaconda, there will report an error when you import some module in ipython:

UserWarning: mkl-service package failed to import, therefore Intel® MKL initialization ensuring its correct out-of-the box operation under condition when Gnu OpenMP had already been loaded by Python process is not assured. Please install mkl-service package

Solution:
First configure three environment variables, one is missing
E:\Anaconda3
E:\Anaconda3\Scripts
E:\Anaconda3\Library\bin
Put E:\Anaconda3\Library\bin under
libcrypto-1_1-x64.dll
libssl-1_1-x64.dll
Copy the above two files to
E:\Anaconda3\DLLs
OK, you can restart pycharm and it will work