tf.truncated_normal
tf.assign(A, new_number)
tf.truncated_normal与tf.random_normal
https://blog.csdn.net/u013713117/article/details/65446361
其他链接：https://blog.csdn.net/uestc_c2_403/article/details/72235565
tf.assign(A, new_number)
这个函数的功能主要是把A的值变为new_number
https://blog.csdn.net/uestc_c2_403/article/details/72235310
TensorFlow中.eval()函数理解
https://blog.csdn.net/yeqiang19910412/article/details/78651939
https://blog.csdn.net/JNingWei/article/details/77573401?locationNum=9&fps=1