python 用matplotlib作图,报错not Qt platform plugin could be initialized

重装Pycharm后,用matplotlib画图

This application failed to start because not Qt platform plugin could be initialized.## 标题

背景:重新安装pycharm后
使用matplotlib画图弹出错误窗口

python 用matplotlib作图,报错not Qt platform plugin could be initialized_第1张图片

全程又没有调用过Pyside2或pyqt5.
新建了一个Project,导入matplolib,
运行一个最简单的程序

import matplotlib.pyplot as plt
plt.plot([3,3,

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