Snack learning is generally short-term, and you can learn it in a few days to weeks, but it depends on your own acceptance.

It is suggested to learn snacks in regular schools, so that you can learn them comprehensively. To learn technology, the hardware facilities of the school must be excellent. Only with more operations, practice makes perfect, and natural technology will be learned. The emphasis is on teaching mode, and there are not many practical courses. Technical schools focus on more hands-on practice and theoretical knowledge. If you only talk about theoretical knowledge every day, you will learn nothing. It is best to combine practice with theory. It's best to go on a field trip and get to know more.