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It is found that many beginners of design patterns have some characteristics, that is, after learning a certain design pattern, they seem to understand it, but they do not know how to use these so-called elite experiences and suffer from not knowing how to start. When I first learned design patterns, I had similar experiences. I shared my experiences, hoping to be helpful to beginners.玉米猛摇头，又向张杨呐呐道，小……小叔不是说过，这是张家跟白凡之间的事，我……我可以置身事外吗？张杨气怒道：你是该置身事外。期待众多仙佛人魔妖打到天崩地裂。】十难道尽倭寇之凶恶，非常人所能战。Depending on the profession you intend to enter, you can choose a single course, certificate certification, or diploma in a certain field, such as network or program. The best plan for learning is to weigh your strengths and weaknesses, and then purposefully find and choose schools. The second half of this series will introduce in detail how to choose IT schools.My major is computer science and I have more than 10 years of experience in software development. In terms of work, I currently lead a team that provides data processing and analysis solutions for banks.