关于qt.qpa.plugin: Could not load the Qt platform plugin “windows“ in ““ even though it was found.问题

将如下三个文件

\Anaconda3\Lib\site-packages\PySide2\plugins\platforms\qminimal.dll
\Anaconda3\Lib\site-packages\PySide2\plugins\platforms\qoffscreen.dll
\Anaconda3\Lib\site-packages\PySide2\plugins\platforms\qwindows.dll

复制到这个文件夹即可
\Anaconda3\Library\plugins\platforms\

如果\Anaconda3\Library\plugins\platforms\中之前已经存在这三个同类型文件，但版本不一样，直接覆盖替换即可