So your verbal resignation is not legally recognized. To be on the safe side, you should submit a written application for resignation after face-to-face communication with the direct leader in advance. You can write a written document by hand, print it and sign it, or send it by email. You can also use SMS, WeChat or internal communication tools, preferably written resignation or email, so that you can understand the receiving status of the other party and better express the sense of ceremony.
If the company won't let you go, first of all, it depends on whether all the work has been handed over, there is evidence of handover, and there is a list and information confirmed by the recipient. Then communicate frankly with the leaders, express personal wishes, give priority to the ceremony before the soldiers, do it hard if you can't get up, or discuss it first. If all this fails, then use legal means, apply in writing three days in advance, and then leave.
Argument: Article 37 of the Labor Contract Law of People's Republic of China (PRC), the employee may terminate the labor contract by giving a written notice to the employer 30 days in advance. The employee may terminate the labor contract by notifying the employer three days in advance during the probation period.
note:
You need to prove that you have proposed to terminate the labor contract with the employer.
Generally speaking, your resignation letter may be handed over to the employer, but you didn't keep the original (the copy can't be used as legal evidence, because the other party can deny the authenticity of the evidence on the grounds that you can't find it without the original), so you can definitely resign with your immediate supervisor or HRD email or WeChat, indicating the last working time.
If it is WeChat, keep the online chat record, don't take screenshots, but save the WeChat chat record, which can be synchronized to the computer for storage.
If it's a private email, it's best to send it online on the email server instead of using the client, so that the email is saved on the server for your proof. If it is a work email, it is recommended to send it to your private email, so that your work email will be closed in the future, and you can still use the received cc email as evidence.
Of course, the whole point of all this is that you won't lose your salary at the end of the month. I feel that unless it is a particularly unscrupulous enterprise, the risk of such losses is generally small.
I hope I can help you. Good luck!