Tensorflow Practice 2-1

 1 import tensorflow as tf
 2 import os
 3 os.environ['TF_CPP_MIN_LOG_LEVEL'] = '2'
 4 
 5 '''创建一个常量op'''
 6 m1 = tf.constant([[3, 3]])
 7 '''创建一个常量op'''
 8 m2 = tf.constant([[2], [3]])
 9 '''创建一个矩阵乘法op，把m1,m2传入'''
10 product = tf.matmul(m1, m2)
11 print(product)
12 
13 '''创建一个会话，用于执行矩阵乘法'''
14 sess = tf.Session()
15 result = sess.run(product)
16 print(result)
17 sess.close()
18 
19 '''通过with语句执行完成后，将自动关闭session'''
20 with tf.Session() as sess:
21     sess = tf.Session()
22     result = sess.run(product)
23     print(result)