• 针对TensorFlow实战框架Chp5，P113面问题

• 在 saver.restore()加载的前面，需要添加 tf.reset_default_graph()，作用是 清除默认图的堆栈，并设置全局图为默认图

• 保存文件

# -*- coding: utf-8 -*-
"""
Created on Sat Jun 30 16:17:26 2018

@author: muli
"""

import tensorflow as tf

v1 = tf.Variable(tf.constant(1.0,shape=[1]),name="v1")
v2 = tf.Variable(tf.constant(2.0,shape=[1]),name="v2")
result = v1 + v2

# 保存训练好的数据
saver = tf.train.Saver()

with tf.Session() as sess:
    sess.run(tf.global_variables_initializer())
    saver.save(sess, "Saved_model/model.ckpt")
    print("已保存完毕！")

• 加载文件

# -*- coding: utf-8 -*-
"""
Created on Sat Jun 30 16:23:46 2018

@author: muli
"""

import tensorflow as tf

# 清除默认图的堆栈，并设置全局图为默认图 
tf.reset_default_graph()

v1 = tf.Variable(tf.constant(1.0,shape=[1]),name="v1")
v2 = tf.Variable(tf.constant(2.0,shape=[1]),name="v2")
result = v1 + v2

# 保存训练好的数据
saver = tf.train.Saver()

with tf.Session() as sess:
    print("正在加载...")
    saver.restore(sess, "./Saved_model/model.ckpt")
    print(sess.run(result))

• 直接加载已经持久化的图

# -*- coding: utf-8 -*-
"""
Created on Sat Jun 30 16:29:50 2018

@author: muli
"""

import tensorflow as tf

# 清除默认图的堆栈，并设置全局图为默认图 
tf.reset_default_graph()

saver = tf.train.import_meta_graph("./Saved_model/model.ckpt.meta")

with tf.Session() as sess:
    saver.restore(sess, "./Saved_model/model.ckpt")
    print(sess.run(tf.get_default_graph().get_tensor_by_name("add:0")))

• 参考博客：https://blog.csdn.net/MachineRandy/article/details/79624010