下载Mediapipe
安装bazel
升级gcc到gcc8
安装opencv
https://files.pythonhosted.org/packages/1b/82/f4f0e73505fb3a54f974c926bce9f9fe250e50eb57d886daf9042cec0d9b/opencv-contrib-python-4.5.4.58.tar.gz
pip3 install -i https://pypi.tuna.tsinghua.edu.cn/simple scikit-build
参考，https://www.it610.com/article/1444818246749433856.htm
