tensorflow学习笔记——4——MNIST数字识别问题

转载自TensorFlow实战Google深度学习框架（第2版）

1.下载和查看mnist数据集的结构：

from tensorflow.examples.tutorials.mnist import input_data
import tensorflow as tf

mnist=input_data.read_data_sets("/home/yang/Desktop/mnist/",one_hot=True)

print("Training data size: ",mnist.train.num_examples)

print("Validating data size: ",mnist.validation.num_examples)

print("Testing data size: ",mnist.test.num_examples)

print "Example training data: ",mnist.train.images[0].size

print "Example training data label: ",mnist.train.labels[0]

2.TensorFlow训练神经网络