问题解决：Volatile = now has no effect. Usewith torch.no_grad():instead.

运行代码时，对于以下内容：

for batch_size, image in enumerate(data_loader):
        image = Variable(image, volatile=True)

出现错误：

Volatile = now has no effect. Usewith torch.no_grad():instead.

解决方法很简单，如下：

for batch_size, image in enumerate(data_loader):
    with torch.no_grad():
        image = Variable(image)

就可以解决问题了~