It is required to publish papers during the postgraduate period, and the number of papers published is also stipulated accordingly. The specific requirements vary from school to school, so you can check your own postgraduate training plan.
Some schools require that what they publish should be regular periodicals, while others require that it should be core or even above. For that kind of demanding school, students should be fully prepared in the first year of study. It is very difficult to get the core. For the students who have just graduated from graduate school, they should be prepared for this core from the beginning of the research.
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Even if there is no school that requires papers to be issued after graduation, generally speaking, the awards in each academic year are excellent, and the papers can still be used for credit awards, which is still one of the qualification requirements for many colleges and universities to win awards. Of course, different schools have different requirements for the level of periodicals, so we should make clear the requirements.