# -*- coding:utf-8 -*- import tensorflow as tf fn_queue=tf.train.string_input_producer(["winequality-white-test.csv"]) reader=tf.TextLineReader(skip_header_lines=1) key,value=reader.read(fn_queue) print(key)#文件名及行數(shù) print(value)#按行讀取的原始字符串 #fixedacidity,volatileacidity,citric acid,residualsugar,chlorides,freesulfurdioxide,totalsulfurdioxide,density,pH,sulphates,alcohol,quality recordDefaults=[[1.],[1.],[1.],[1.],[1.],[1.],[1.],[1.],[1.],[1.],[1.],[1.]] (fixedacidity,volatileacidity,citricacid,residualsugar,chlorides,freesulfurdioxide,totalsulfurdioxide,density,pH,sulphates,alcohol,quality)=\ tf.decode_csv(value,record_defaults=recordDefaults) features=tf.stack([fixedacidity,volatileacidity,citricacid,residualsugar,chlorides,freesulfurdioxide,totalsulfurdioxide,density,pH,sulphates,alcohol]) out=quality init_op=tf.global_variables_initializer()with tf.Session() as sess:sess.run(init_op)#開啟協(xié)調(diào)器coord=tf.train.Coordinator()#啟動隊列填充threads=tf.train.start_queue_runners(coord=coord)try:for i in range(200):sample,label=sess.run([features,out])print(sample)print(label)print("--------")except tf.errors.OutOfRangeError:print("Done!!!")finally:coord.request_stop()coord.join(threads)print("reading has finished.")

以白酒品質(zhì)樣本文件為例，輸出結(jié)果如下：
…
…
[6.100e+00 2.700e-01 4.300e-01 7.500e+00 4.900e-02 6.500e+01 2.430e+02
9.957e-01 3.120e+00 4.700e-01 9.000e+00]
5.0
reading has finished.

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