pip install Scikit-learn --target=C:/Users/Jery/PycharmProjects/play/venv/Lib/site-packages -i https://pypi.tuna.tsinghua.edu.cn/simple
pip install Scikit-learn --target=C:/Users/Jery/PycharmProjects/play/venv/Lib/site-packages -i https://pypi.tuna.tsinghua.edu.cn/simple