安装依赖:
pip install -r requirements.txt -i https://pypi.douban.com/simple
返回结果:
ERROR: Could not open requirements file: [Errno 2] No such file or directory: 'requirements.txt'
WARNING: You are using pip version 20.2.3; however, version 21.1.2 is available.
You should consider upgrading via the 'd:\python39\python.exe -m pip install --upgrade pip' command.