python placeholder函数的问题

Question

import tensorflow as tf
b=tf.Variable(tf.zeros([100]))
w=tf.Variable(tf.random_uniform([784,100],-1,1))
x=tf.placeholder(name="x")

出现如下错误：
TypeError: placeholder() takes at least 1 argument (1 given)

请教如何解决

Answer 1

placeholder 有个必须的参数 dtype 设置上 试试