step1

File → settings → Tools → External Tools

QtDesigner

Name:QtDesigner
Program:E:\PycharmProject\environment\Lib\site-packages\PyQt5\Qt\bin\designer (designer.exe路径)
Arguments：$ FileDirName $
Working directory: $ ProjectFileDir $

PyUIC

Name:PyUIC
Program:E:\PycharmProject\environment\Scripts\python (python.exe路径)
Arguments：-m PyQt5.uic.pyuic $ FileName $ -o $ FileNameWithoutExtension $.py
Working directory: $ FileDir $

PyRCC

Name:PyUIC
Program:E:\PycharmProject\environment\Scripts\pyrcc5 (pyrcc5.exe路径)
Arguments：$ FileName $ -o $FileNameWithoutExtension $_rc.py
Working directory: $ FileDir $