解决This application failed to start because it could not find or load the Qt platform plugin “windows

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错误如下：

不要去追求什么方法了，直接重装即可：

1.打开命令提示符输入：

1.pip install PyQt5 -i https://pypi.douban.com/simple

2.安装PyQt常用工具

pip install PyQt5-tools -i https://pypi.douban.com/simple

问题解决！！！！
 

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