看完this并参加类(class)，我正在努力解决作业1(notMnist)中的第二个问题:Let'sverifythatthedatastilllooksgood.Displayingasampleofthelabelsandimagesfromthendarray.Hint:youcanusematplotlib.pyplot.这是我尝试过的:importrandomrand_smpl=[train_datasets[i]foriinsorted(random.sample(xrange(len(train_datasets)),1))]print(rand_smpl)filena