向TensorFlow中的张量添加信息

import tensorflow as tf

A = tf.constant([[1, 2, 3], [4, 5, 6]])
B = tf.constant([[7, 8, 9], [10, 11, 12]])

C = tf.concat([A, B], axis=0)

print(C)

[[ 1  2  3]
 [ 4  5  6]
 [ 7  8  9]
 [10 11 12]]

import tensorflow as tf

A = tf.Variable([1, 2, 3])
B = tf.constant([4, 5, 6])

assign_op = tf.assign(A, B)

with tf.Session() as sess:
    sess.run(tf.global_variables_initializer())
    sess.run(assign_op)
    print(sess.run(A))

[4 5 6]