Windows下pip使用清华源

一、下列内容更换成批处理，直接运行即可

@echo off
md "C:\Users\Administrator\AppData\pip"
echo [global] >C:\Users\Administrator\AppData\pip\pip.ini
echo index-url = https://pypi.tuna.tsinghua.edu.cn/simple >>C:\Users\Administrator\AppData\pip\pip.ini
echo trusted-host = pypi.tuna.tsinghua.edu.cn >>C:\Users\Administrator\AppData\pip\pip.ini
pause