我是Python新手。几天前我安装了Anaconda和PyCharm（在D盘），我正在尝试使用该matplotlib包来绘制一张图片。当我单击“运行”时，出现以下错误：
Traceback (most recent call last):
File "G:\onedrive\OneDrive - mail.dlut.edu.cn\PyCharm\shock wave\P6.py", line 7, in <module>
import matplotlib.pyplot as plt
File "D:\anaconda3\lib\site-packages\matplotlib\pyplot.py", line 2230, in <module>
switch_backend(rcParams["backend"])
File "D:\anaconda3\lib\site-packages\matplotlib\__init__.py", line 672, in __getitem__
plt.switch_backend(rcsetup._auto_backend_sentinel)
File "D:\anaconda3\lib\site-packages\matplotlib\pyplot.py", line 247, in switch_backend
switch_backend(candidate)
File "D:\anaconda3\lib\site-packages\matplotlib\pyplot.py", line 267, in switch_backend
class backend_mod(matplotlib.backend_bases._Backend):
File "D:\anaconda3\lib\site-packages\matplotlib\pyplot.py", line 268, in backend_mod
locals().update(vars(importlib.import_module(backend_name)))
File "D:\anaconda3\lib\importlib\__init__.py", line 127, in import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "D:\anaconda3\lib\site-packages\matplotlib\backends\backend_qtagg.py", line 12, in <module>
from .backend_qt import (
File "D:\anaconda3\lib\site-packages\matplotlib\backends\backend_qt.py", line …