1、tf.Variable VS. tf.placehold:
如名字,前者在于变量,后者在于占位符
参考:https://blog.csdn.net/lanchunhui/article/details/61712830
2、tf.transpose()
https://blog.csdn.net/banana1006034246/article/details/75126815
3、tf.multiply()
对应元素求乘积,element-wise
https://blog.csdn.net/mumu_1233/article/details/78887068
4、tf.reduce_sum()
按照一定维度求和,行,列求和等等