According to Article 37 of the Labor Contract Law, the labor contract can be terminated by notifying the employer in writing 30 days in advance. The labor contract may be terminated by notifying the employer three days in advance during the probation period.
Therefore, if it is a probation period, you only need to resign orally or in writing three days in advance, and if you have become a full member, you need to resign in writing 30 days in advance.