new_contents: #!/usr/bin/python
  # -*- coding: utf-8 -*-
  # Author: violinsolo
  # Created on 08/03/2018
  
  import tensorflow as tf
  import numpy as np
  
  x_shape = [5, 3, 3, 2]
  x = np.arange(reduce(lambda t, s: t*s, list(x_shape), 1))
  
  print x
  
  x = x.reshape([5, 3, 3, -1])
  
  print x.shape
  
  
  
  X = tf.Variable(x)
  
  with tf.Session() as sess:
      m = tf.nn.moments(X, axes=[0])
      # m = tf.nn.moments(X, axes=[0,1])
      # m = tf.nn.moments(X, axes=np.arange(len(x_shape)-1))
      mean, variance = m
  
      print(sess.run(m, feed_dict={X: x}))
      # print(sess.run(m, feed_dict={X: x}))
subject: 更新了一个例子，用于展示tf moments