(base) kewei@DESKTOP-3JRQ3HI:~$ pip config set global.index-url https://pypi.tuna.tsinghua.edu.cn/simple
Writing to /home/kewei/.config/pip/pip.conf

C:\Users\25122>pip config set global.index-url https://pypi.tuna.tsinghua.edu.cn/simple
Writing to C:\Users\25122\AppData\Roaming\pip\pip.ini

linux windows通用