构建环境（储存在E:/anaconda/envs/PyTorch）conda activate PyTorch
安装已下载的whl:E:
cd pytorch1.0.0
pip install “torch-1.0.0-cp37-cp37m-win_amd64.whl”
安装torchvision:pip install torchvision＝＝0.4.1

验证:python
import torch
import torchvision
print(torch.version)
print(torch.cuda.is_available())

卸载：pip uninstall torch