Write a personal profile (name, gender, nationality, etc.). ) and education (school, major, etc. ) first of all. Just write that you are a student. If there is really nothing to write about, just write about your main course. You don't have to write about your work experience if you don't graduate. You can also write about some social practices, including activities you take part in on campus and social part-time jobs. Finally, you can write your own advantages and self-evaluation.
This is basically enough, because you have nothing else. If you are part-time, you will not attach too much importance to your resume. If you take a more professional part-time job in an enterprise, people will pay more attention to your resume.