在系統環境變量中增bai加：
QT_QPA_PLATFORM_PLUGIN_PATH
C:\Python34\Lib\site-packages\PyQt5\plugins <<----這里改成你的duPyQt5的plugins文件夾所在位置
pycharm運行PyQt5出現錯誤This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem.
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