from matplotlib import pyplot as plt
在终端输入pip install matplotlib -i https://pypi.tuna.tsinghua.edu.cn/simple https://pypi.tuna.tsinghua.edu.cn/simple
然后显示
Looking in indexes: https://pypi.tuna.tsinghua.edu.cn/simple
Requirement already satisfied: matplotlib in d:\python3.8.2\lib\site-packages (3.4.2)
Requirement already satisfied: pillow>=6.2.0 in d:\python3.8.2\lib\site-packages (from matplotlib) (8.3.1)
Requirement already satisfied: cycler>=0.10 in d:\python3.8.2\lib\site-packages (from matplotlib)
(0.10.0)
Requirement already satisfied: pyparsing>=2.2.1 in d:\python3.8.2\lib\site-packages (from matplotlib) (2.4.7)
Requirement already satisfied: python-dateutil>=2.7 in d:\python3.8.2\lib\site-packages (from matplotlib) (2.8.2)
Requirement already satisfied: numpy>=1.16 in d:\python3.8.2\lib\site-packages (from matplotlib) (1.21.1)
Requirement already satisfied: kiwisolver>=1.0.1
in d:\python3.8.2\lib\site-packages (from matplotlib) (1.3.1)
Requirement already satisfied: six in d:\python3.8.2\lib\site-packages (from cycler>=0.10->matplotlib) (1.16.0)
这是已经安装好这个库的意思吗？
但是我运行代码还是报错
Traceback (most recent call last):
File "d:\python_\P61.py", line 10, in <module>
from matplotlib import pyplot as plt
ModuleNotFoundError: No module named 'matplotlib'
详细提示是
Import "matplotlib" could not be resolved from source Pylance （reportMissingModuleSource）
究竟是哪里出了问题？
一般的引入方式 是这样 import matplotlib.pyplot as plt