將pip安裝的包導出到文件列表
pip freeze > requirements.txt # 生成requirements.txt
pip批量安裝包及通過列表文件安裝
pip install -r requirements.txt # 從requirements.txt安裝依賴
下載pip包-通過列表文件批量下載pip包
下載單個包：pip download numpy
批量下載：pip download -r requirements.txt
離線環境通過pip安裝包
離線安裝單個指定包：pip install --no-index --find-links=/packs/ pandas
離線批量安裝包：pip install --no-index --find-links=/packs/ -r requirements.txt
Python pip安裝包導入導出、下載包和離線安裝. (n.d.). Retrieved August 31, 2020, from https://blog.csdn.net/qq_38567546/article/details/105075018
