配置anaconda+pycharm
在pycharm中 import matplotlib.pyplot as plt时报以下错误：
This application failed to start because it could not find or load the Qt platform plugin "windows"........
此时按照提示 打开anaconda-prompt 先卸载pyqt5 在安装pyqt5就可以了
如果还是报错 No modle named “pyqt5.sip”
然后此时安装sip就OK了
pip uninstall pyqt5
pip install pyqt5
测试过 pip install --upgrade pyqt5是没办法解决问题的