TensorFlow 变量Variable

import tensorflow as tf

state = tf.Variable(0, name='counter')  # 定义了名字是counter，初始值为0的计数器
print(state.name)

one = tf.constant(1)
new_value = tf.add(state, one)
update = tf.assign(state, new_value)
print(new_value)

init = tf.initialize_all_variables()    # 在tf中定义变量Variable 一定要初始化

with tf.Session() as sess:
    sess.run(init)        #一定要run(init)
    for _ in range(3):
        sess.run(update)
        print(sess.run(state))