简介

下载和读取mnist数据集，转化成tfrecord文件。

1. 读取mnist数据集-方法1

from tensorflow.examples.tutorials.mnist import input_data

Maybe cause warning:

WARNING:tensorflow:From D:/python/tf_data_process/mnist2tfrecord.py:23: read_data_sets (from tensorflow.contrib.learn.python.learn.datasets.mnist) is deprecated and will be removed in a future version.
Instructions for updating:
Please use alternatives such as official/mnist/dataset.py from tensorflow/models.

In tensorflow>=1.8, tensorflow.examples.tutorials is deprecated, you can get dataset.py from https://github.com/tensorflow/models/blob/master/official/mnist/dataset.py or

import tensorflow as tf
mnist = tf.keras.datasets.mnist
(x_train, y_train),(x_test, y_test) = mnist.load_data()

2. 读取mnist数据集-方法2

import input_data

input_data.py是tensorflow提供的下载和读取MNIST数据集的源码。详情参考http://www.tensorfly.cn/tfdoc/tutorials/mnist_download.html