Traceback (most recent call last): File "D:\pythonProject\main.py", line 157, in <module> for (data, target) in val_loader: File "C:\ProgramData\anaconda3\lib\site-packages\torch\utils\data\dataloader.py", line 634, in __next__ data = self._next_data() File "C:\ProgramData\anaconda3\lib\site-packages\torch\utils\data\dataloader.py", line 678, in _next_data data = self._dataset_fetcher.fetch(index) # may raise StopIteration File "C:\ProgramData\anaconda3\lib\site-packages\torch\utils\data\_utils\fetch.py", line 51, in fetch data = [self.dataset[idx] for idx in possibly_batched_index] File "C:\ProgramData\anaconda3\lib\site-packages\torch\utils\data\_utils\fetch.py", line 51, in <listcomp> data = [self.dataset[idx] for idx in possibly_batched_index] File "D:\pythonProject\main.py", line 35, in __getitem__ image = Image.open(self.filenames[idx]).convert('RGB') File "C:\ProgramData\anaconda3\lib\site-packages\PIL\Image.py", line 3227, in open fp = builtins.open(filename, "rb") FileNotFoundError: [Errno 2] No such file or directory: 'D'但是它抛出这样的错误

这个错误可能是由于文件名中包含空格或其他特殊字符而导致的。在读取文件名时，建议对文件名进行处理，例如使用 `os.path` 模块中的函数来获取文件名的基础部分。例如，可以使用 `os.path.basename` 函数来获取文件名中的基础部分，如下所示：

import os

class FlowerDataset(Dataset):
    def __init__(self, filenames, labels, transform):
        self.filenames = filenames
        self.labels = labels
        self.transform = transform
    
    def __len__(self):
        return len(self.filenames)
    
    def __getitem__(self, idx):
        filename = os.path.basename(self.filenames[idx])
        image = Image.open(filename).convert('RGB')
        image = self.transform(image)
        return image, self.labels[idx]

这样，在读取文件时，就可以避免文件名中的特殊字符导致的错误。