saver.save(sess, FLAGS.train_dir, global_step=step)

import tensorflow as tf
 
W = tf.Variable([[1, 2, 3]], dtype=tf.float32)
b = tf.Variable([[1]], dtype=tf.float32)
 
saver = tf.train.Saver()
 
sess = tf.InteractiveSession()
tf.global_variables_initializer().run()
# 必须要指定文件夹，保存到ckpt文件
save_path = saver.save(sess, "winycg/1.ckpt")
print(save_path)

import tensorflow as tf
import numpy as np
 
W = tf.Variable(np.arange(3).reshape(1, 3), dtype=tf.float32)
b = tf.Variable(np.arange(1).reshape(1, 1), dtype=tf.float32)
 
saver = tf.train.Saver()
 
sess = tf.InteractiveSession()
# 读取参数时不需要global_variables_initializer()
save_path = saver.restore(sess, "parameter/1.ckpt")
print("weights:", sess.run(W))
print("bias:", sess.run(b))