TensorflowテンソルTensorの具体的な次元例を取得する

>>> import tensorflow as tf

>>> tf.__version__
'1.2.0-rc1'

>>> x=tf.placeholder(dtype=float32,shape=[1,2,3,4])
>>> x=tf.placeholder(dtype=tf.float32,shape=[1,2,3,4])

>>> x.shape
TensorShape([Dimension(1), Dimension(2), Dimension(3), Dimension(4)])
>>> x.get_shape()
TensorShape([Dimension(1), Dimension(2), Dimension(3), Dimension(4)])
#   tuple

>>> x.shape[2]
Dimension(3)
>>> x.get_shape()[2]
Dimension(3)

#         
>>> x.shape[2].value
3
>>> x.get_shape()[2].value
3
#     TensorShape     list  ，          
>>> x.shape.as_list()
[1, 2, 3, 4]
>>> x.shape.as_list()
[1, 2, 3, 4]

#    int     
>>> x.shape[2] == 3
True
>>> x.get_shape()[2] == 3
True