1. Apologize and explain why: Apologize to the interviewer and explain why you forgot to bring your resume, such as being busy preparing for an interview or leaving home in a hurry. I'm very sorry, I left home in a hurry today and forgot to bring my resume. I really hope to show you my skills and experience through the oral examination.
2. Emphasize that you are ready: it means that not bringing your resume doesn't mean that you are not ready for employment opportunities. You can emphasize your competitiveness in terms of personal skills, experience and achievements. Example: Although I didn't bring my resume today, I am very familiar with your company and have rich experience and skills in this industry. I hope I can show you my strength and ability through the oral examination.