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conda create --name py37 python=3.7
nvcc -V 查询自己的CUDA版本，再到Previous PyTorch Versions | PyTorch，寻找对应的版本和pytorch，
conda install pytorch==1.2.0 torchvision==0.4.0 cudatoolkit=10.0 -c pytorch
安装对应版本opencv=3.4.8.29
pip install opencv-python==3.4.2.17
pip install opencv-contrib-python==3.4.2.17
conda install libopencv
python setup.py install
fatal error: opencv2/opencv.hpp: No such file or directory
sh make.sh fatal error: opencv2/opencv.hpp: No such file or directory
问题：
fatal error: opencv2/opencv.hpp: No such file or directory
解决：
sudo apt-get install libopencv-dev
conda install libopencv