pip insall pipenv
安裝pipenv的時候報錯，錯誤提示：
ERROR: Cannot uninstall 'filelock'. It is a distutils installed project and thus we cannot accurately determine which files belong to it which would lead to only a partial uninstall.
解決方法：
pip install --ignore-installed filelock -i https://pypi.douban.com/simple pipenv
輸入命令后安裝成功