問題：打開QTdesigner時報錯如下
PyQt：解決This application failed to start because no Qt platform plugin could be initialized問題 解決方法：
找到路徑python37\Lib\site-packages\pyqt5_tools\Qt\plugins（按個人安裝的路徑）。
PyQt：解決This application failed to start because no Qt platform plugin could be initialized問題 将plugins檔案夾複制到pyqt5_tools\Qt\bin\designer.exe或pyqt5_tools\Qt\designer.exe同級目錄下（路徑可能不同，找到designer.exe即可），再次打開designer.exe就沒問題啦。
PyQt：解決This application failed to start because no Qt platform plugin could be initialized問題 PyQt：解決This application failed to start because no Qt platform plugin could be initialized問題 關于Pyside2同樣的問題請參考：
https://www.cnblogs.com/IaCorse/p/12024428.html
