莫烦tensorflow教程笔记（二）

tensorflow中变量的用法

import tensorflow as tfstate = tf.Variable(0,name='counter')  #可以为变量指定nameprint(state.name)

one = tf.constant(1)new_value = tf.add(state,one)update = tf.assign(state,new_value)    #把new_value 的值赋给stateinit = tf.global_variables_initializer()          # 当程序中有变量时，必须初始化

with tf.Session() as session:    session.run(init)    for _ in range(3):        session.run(update)        print(session.run(state))       #输出结果1,2,3