Google Colab 免费的谷歌GPU for deep learning

Who wants to use a free GPU for deep learning?
Google Colab is a free cloud service and now it supports free GPU.
pictures show you an experimental example that I have done to test this tool and I recommend it.
Fast.ai Lesson 1 on Google Colab (Free GPU) – Towards Data Science
Google Colaboratory Notebook Tutorial with GPU (Very Easy) - YouTube