tensorflow2.0 yolov3是基于keras还是纯tensorflow？

[Shame-fight]

看评论区对tf2的速度表达不一致，到底是tf1快还是tf2快呢，在实际的运行当中。

[jasonhai18]

feels like the model was written by tf.keras inside (common.py)

[rashidch]

tf.keras.layers is part of TensorFlow 2.0 API and it will be used for building models. I think it is considered as pure TensorFlow now.

[zhengvh]

项目中keras搭建模型，加载数据，训练模型是tf，算是混用，但是tf为主，同时似乎这个项目有bug，issue中好多人都在讨论，我也遇见了这些问题。