Created by: TyrionZK

参数更新不应该是 update_param=param-grad *lr * weight_decay吗？为什么下面链接中grad为param_list[param.name]呢？ https://github.com/PaddlePaddle/PaddleHub/blob/d9293a3f8ae0dce9ccd26c71ffbddfff20769e82/paddlehub/finetune/strategy.py#L454