参考: bn层原理: https://blog.youkuaiyun.com/qq_25737169/article/details/79048516 https://blog.youkuaiyun.com/hjimce/article/details/50866313 合并bn层: https://blog.youkuaiyun.com/kangdi7547/article/details/81348254 caffe中的实现: https://blog.youkuaiyun.com/zziahgf/article/details/78843350 https://www.cnblogs.com/LaplaceAkuir/p/7811383.html