先安装miniconda

https://mirrors.tuna.tsinghua.edu.cn/anaconda/miniconda/

进入Anaconda Prompt

pip config set global.index-url https://pypi.tuna.tsinghua.edu.cn/simple

conda create -n yolo8 python=3.14
conda activate yolo8

pip install torch==2.12.1 torchvision==0.27.1 --index-url https://download.pytorch.org/whl/cpu