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这个报错是因为sess.run(a,b,c)里要运行的多个变量没有用中括号括起来
举个错误的例子:下面报错是因为sess.run里的c和d没有用中括号
import tensorflow as tf
a = tf.placeholder(tf.float32, [1])
b = tf.placeholder(tf.float32, [1])
c = tf.multiply(a, b)
d = tf.add(a, b)
with tf.Session() as sess:
prod, sum_ab = sess.run(c, d, feed_dict={a: [1.], b: [2.]})
print(prod, sum_ab)
应该将后面那段程序改成:
import tensorflow as tf
a = tf.placeholder(tf.float32, [1])
b = tf.placeholder(tf.float32, [1])
c = tf.multiply(a, b)
d = tf.add(a, b)
with tf.Session() as sess:
prod, sum_ab = sess.run([c, d], feed_dict={a: [1.], b: [2.]})
print(prod, sum_ab)