Python安装TextTestRunner时，版本不一致的问题

问题：WARNING: You are using pip version 22.0.4; however, version 22.1.2 is available.
You should consider upgrading via the 'D:安装python.exe -m pip install --upgrade pip' command.

解决：在终端输入 python -m pip install --upgrade pip 进行升级之后，再重新输入pip install html-testRunner就解决啦！