a = np.random.random((3,3))

b = np.random.randint(0,9,(3,3))

ad = tf.add(a,b)

# tensorflow 使用矩阵乘法都必须使用相同类型的数据，否则报错。

a = np.random.random((5,3))

b = np.random.randint(0,9,(3,6))

c = tf.tensordot(a.astype(np.float),b.astype(np.float),axes=1)

print(c.numpy())

a = np.random.random((3,3))

b = np.random.randint(0,9,(3,3))

ad = tf.subtract(a,b)

d = tf.divide(9*2,3)

print(d.numpy())