When I was developing, I would read a few lines of blogs or documents and just use the functions, so my skills were stuck at a certain level, but after listening to the lecture, I think I went up several levels. "I used to use it like this, but I improved the shortcomings and used it like this, and now ~~ is automatically supported like this." I learned this way, so there was a certain introduction, development, climax, and conclusion, so the lecture was fun and had a flow, so I think I remembered it better. I'll quickly organize it and go listen to the next lecture starting tomorrow!