handwritten digit recognition LeNet on MNIST data

 # coding = utf-8

    
 # 2019/7/22  Luckyxxt：有趣的事，Python永远不会缺席！
    
  
    
 import tensorflow as tf
    
 import time
    
 import tensorflow.examples.tutorials.mnist.input_data as input_data
    
 old_v = tf.logging.get_verbosity()
    
 tf.logging.set_verbosity(tf.logging.ERROR)
    
 t1 = time.time()
    
 mnist_data_folder = './MNIST_data'
    
 mnist = input_data.read_data_sets(mnist_data_folder, one_hot=True)
    
 tf.logging.set_verbosity(old_v)
    
 print('mnist.train.images.shape', mnist.train.images.shape)
    
 print(