import tensorflow as tf

state = tf.Variable(0,name='counter')#創建變量

#print state.name

one = tf.constant(1)#創建常量

new_value = tf.add(state,one)#加法

update = tf.assign(state,new_value)#重新分配

init = tf.initialize_all_variables()#must have if define variable

#在會話中操作

with tf.Session() as sess:

? ? sess.run(init)

? ? for _ in range(3):

? ? ? ? sess.run(update)

? ? ? ? print sess.run(state)