Usually there is a professor and a student, the professor is in front and the student is behind; If they are all the same, the author ranks first, and the author who writes less ranks last; Any paper has contributed to the main thinkers, with the main contributors in the front and others in the back; If the project research group works together and writes together, it should be sorted through consultation or according to the chapter or writing order of the paper; The same contributions, the same writing, and the same paper creation are almost the same, and chapters or orders cannot be defined, so they can be sorted according to the order of names and strokes.