報錯信息如下：
Traceback (most recent call last):
File "<string>", line 1, in <module>
File "D:\Anaconda3\lib\multiprocessing\spawn.py", line 105, in spawn_main
exitcode = _main(fd)
File "D:\Anaconda3\lib\multiprocessing\spawn.py", line 115, in _main
self = reduction.pickle.load(from_parent)
EOFError: Ran out of input
經查，百度等發現需要在pytorch的torch.utils.data.DataLoader中，把參數num_workers（表示進程個數）改為0即可。