This topic is advertising, right? Suspect everyone upstairs. In fact, to put it bluntly, training technology mainly depends on whether you can learn something real, and the key to learning technology lies in whether the teacher is professional or not, and whether you can teach technology well. You only pay for a skill, right? But teachers are on the one hand, their own efforts are more important, and the role of training institutions is to help you find good ways and shortcuts to study, which are actually similar.