https://blog.csdn.net/liwusen/article/details/51051079
深度学习中Embedding层有什么用?
https://fuhailin.github.io/Embedding/
numpy.random用处
https://www.cnblogs.com/lemonbit/p/6864179.html
(Batch_size,num_step,embeding_size)
range()和np.arrange()的区别与联系
https://blog.csdn.net/zenghaitao0128/article/details/78562489
np.unpackbits 二进制转换。
https://blog.csdn.net/baidu_15113429/article/details/79877462