xxy90

Results 3 issues of xxy90

Thank you for your reply.I try to use pytorch to train my own dataset ,but when i use the SGD optimizer with configs in config.py,after few steps, the loss became...

![image](https://user-images.githubusercontent.com/32832726/100564276-89805080-32fb-11eb-861f-b34daf29c0f6.png)