pytorch torchversion自带的数据集

from torchvision.datasets import MNIST
# import torchvision
# torchvision.datasets.

#准备数据集

mnist = MNIST(root="./mnist",train=True,download=True)
print(mnist)
mnist[0][0].show()
print(len(mnist))

　　

Dataset MNIST
Number of datapoints: 60000
Root location: ./mnist
Split: Train
60000