多种卷积网络实现

https://www.cnblogs.com/skyfsm/p/8451834.html

https://towardsdatascience.com/understanding-and-coding-a-resnet-in-keras-446d7ff84d33

https://github.com/priya-dwivedi/Deep-Learning/blob/master/resnet_keras/Residual_Networks_yourself.ipynb