tensorflow8 placeholder

    xiaoxiao2021-08-27  79

    import tensorflow as tf input1 = tf.placeholder(tf.float32) #type input2 = tf.placeholder(tf.float32) #type output = tf.mul(input1,input2) with tf.Session() as sess: print (sess.run(output,feed_dict = {input1:[7.],input2:[2.0]}))

    说明:

    1、placeholder是占位符,只有在要运行的时候,才传值进去,用于存放训练数据,每次训练的时候,我们才将输入送进去

    2、placeholder和feed_dict是一一对应的,feed_dict用于传进必要的input,去初始化placeholder的值

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