完美解决Error loading “D:\python\lib\site-packages\torch\lib\fbgemm.dll“ or one of its dependencies.

pip安装torch后，import torch报错，说明缺少一个依赖libomp，官网下载即可

libomp140.x86_64.dll : Free .DLL download. (dllme.com)

然后将libomp140.x86_64.dll复制到    \python路径下\Lib\site-packages\torch\lib  
即可解决