TensorFlow基础3——tf.Variable()和tf.constant()

tf.Variable()生成变量

tf.constant()生成常量

变量需要初始化：

init = tf.initialize_all_variables()

sess.run(init)

 1 import tensorflow as tf 
 2 
 3 state = tf.Variable(0,name='counter')
 4 print(state.name)
 5 one = tf.constant(1)
 6 
 7 new_value = tf.add(state,one)
 8 update = tf.assign(state,new_value)
 9 
10 init = tf.initialize_all_variables()
11 
12 with tf.Session() as sess:
13     sess.run(init)
14     for step in range(3):
15         sess.run(update)
16         print(sess.run(state))