1、运行cmd
ctrl+r:cmd
2、输入升级命令
输入命令
Python -m pip install -U pip
3、查看更新是否成功
输入命令
pip -V
出现下述tips,按上面操作即可
WARNING: You are using pip version 21.1.2; however, version 21.2.3 is available.
You should consider upgrading via the ‘e:\program files\python39\python.exe -m pip install --upgrade pip’ command.
