For example, if you want to learn python, you just have a brief look at the above examples and know some basics, but you still can't write it, because you want to write python programs completely and deeply, and you also know http. You need to know how to extract the content and sentences you need, and you need to know the correct usage of some expressions. If you think there are too many mistakes, then you haven't learned Python yet and need to read more. I haven't heard what Mr. Xuefeng said. Although many of them are basic, you still need to practice these things. Without a little exercise, you can only talk on paper, and the knowledge you get is still superficial after all. If you have listened to his class, you still have a lot of feelings that you can't, so you should check it out immediately. You can't keep yourself ignorant, but you will after a long time. This is not lacking in practicality. Don't ask in a hurry, or you won't understand him after his next class.
Experience is very important, but actual operation is always more important than experience, because the computer industry is inherently changeable. You need to keep learning new knowledge, consolidate old knowledge and eliminate those old and useless knowledge. You need to know Mr. Xuefeng's class in advance, so that you can concentrate on the class if you don't know it later, so that you won't understand his class.