安装yolox

https://github.com/Megvii-BaseDetection/YOLOX
https://zhuanlan.zhihu.com/p/392570215

安装cocoapi

mkdir cocoapi && cd cocoapi
git clone --filter=blob:none -q https://github.com/cocodataset/cocoapi.git .
pip3 install cython
python3 setup.py install --user