combines consecutive elements of this dataset into batches. 两种情况取决于是否要最后那个个数不足的batch
dataset = tf.data.Dataset.range(8)
dataset = dataset.batch(3)
print(list(dataset.as_numpy_iterator()
combines consecutive elements of this dataset into batches. 两种情况取决于是否要最后那个个数不足的batch
dataset = tf.data.Dataset.range(8)
dataset = dataset.batch(3)
print(list(dataset.as_numpy_iterator()