dataloader使用tqdm和enumerate进不了for循环了?

调试MS-G3D程序时
with torch.no_grad():
        self.model = self.model.cuda(self.output_device)
        self.model.eval()
        self.print_log(f'Eval epoch: {epoch + 1}')
        for ln in loader_name:
            loss_values = []
            score_batches = []
            step = 0
      
            process = tqdm(self.data_loader[ln], dynamic_ncols=True)
      
            for batch_idx, (data, label, index) in enumerate(process):
                data = data.float().cuda(self.output_device)
                label = label.long().cuda(self.output_device)
                output = self.model(data)
显示进度条为0后结束,不执行后续程序
1.直接在for循环括号里 self.data_loader[ln]

2.num_workers过大,但我设置为0
都没有效果

可以进入for循环