import tensorflow as tf

state = tf.Variable(0,name='counter')

print(state.name)

one = tf.constant(1)

#常量加变量还是变量

new_value = tf.add(state,one)

#把新的值给state变量

update = tf.assign(state,new_value)

init = tf.initialize_all_variables()  #初始化所有变量

with tf.Session() as sess:

    sess.run(init)

    for _ in range(3):

        sess.run(update)

        print(sess.run(state))

1

2

3