feed_dict参数的作用是替换图中的某个tensor的值。例如: a = tf.add(2, 5) #a=7 b = tf.multiply(a, 3) #b=3*7=21 with tf.Session() as sess: print(sess.run(b)) replace_dict = {a:15} #用15代替b算式中的a print(sess.run(b, feed_dict = replace_dict)) --------------------- 输出如下: 21 45
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