Tensorflow中训练cifar10出现name 'train_data' is not defined问题

Question

用神经网络训练cifar10

init=tf.global_variables_initializer()
batch_size=20
train_steps=1000
with tf.Session() as sess:
    for i in range(train_steps):
        batch_data,batch_labels=train_data.next_batch(batch_size)
        loss_val,acc_val,_=sess.run(
            [loss,accuracy,train_op],
            feed_dict=
            {x: batch_data,
             y: batch_labels})
        if i%500==0:
            print('[Train] Step:%d,loss:%4.5f,acc:%4.5f'\
                 %(i,loss_val,acc_val))
# ```
出现name 'train_data' is not defined问题不知道怎么解决了

Answer 1

https://blog.csdn.net/zongleli/article/details/79259466