The purpose of submitting our resume is to hope that the employer can get to know us in the shortest time. Because you are not the only job seeker, he doesn't have much time to listen to you slowly. And having a resume also shows that you attach importance to his recruitment and give you a good impression. So you'd better make a resume before looking for a job. Of course, if you are superior in ability, you can take the initiative to find a general manager or something to interview you and watch you. Then you don't have to use your resume.