Some problems

I don’t understand these codes well since I am a beginner ? Should I remember this code?

And when I finish this course,will I write this code dependently?
Thanks very much!

that will be pieces of codes that you will remeber without having to memorize it. the more you practice, the more familiar you will get with the code. don’t stress.

Hi Lizhuofeng
dls = means get my data
learn = this is my model and here is my data(dls)
learn.fine_tune means go and process the data

You can start with the Bears example. If you can purchase the book it can be read again and again and one day you will feel brave enough to try downloading your own data and build your model.

Regards Conwyn