The second advantage of direct blog is that you can take the four to five years of direct blog as a whole, do a project with peace of mind, conduct in-depth and systematic research and get high-quality results. If you study for a master's degree and then a doctor's degree, you will often do two different projects. Especially during the master's period, I have to attend classes in the first year, and I am busy writing master's thesis, defending, taking exams and doing scientific research in the last year, which is very limited. In such a tight time, in order to publish articles quickly to ensure master's graduation, many teachers and students have to choose to do "short, flat and fast" research topics and "sell" research papers to "hit the nail on the head" low-grade publications. On the contrary, when the master's degree is about to graduate, no scientific research papers have been published, and both students and tutors are "Yali Mountain".