After a long installation in pycharm, it still fails.
Try it from the command line, using python3. Command: python3 -m pip install scipy.
Found that the download speed is very slow, only a dozen k per second, but the scipy package has 49M.
Solution:
https://www.cnblogs.com/microman/p/6107879.html
Command: python3 -m pip install -i https://pypi.tuna.tsinghua.edu.cn/simple scipy.
The download speed is fast, so the problem of using the scipy package in pycham is solved.