Windows系统中使用requirements.txt快速安装python虚拟环境的包
python虚拟环境路径：E:\rf\python_venv
requirements.txt文件路径：E:
pipinstall.bat文件路径：E:\
pipinstall.bat内容
cd E:\rf\python_venv\rf_venv\Scripts && call activate.bat && pip install -r E:\requirements.txt -i https://pypi.tuna.tsinghua.edu.cn/simple && pause && exit
