Bank account numbers are generated by the banking system in accordance with specific rules and algorithms, and individuals are not allowed to generate them at will. Each bank has its own well-established account coding system. These rules involve many factors, including but not limited to： 1. Business logic and account classification management within the bank. 2. Security design, through complex algorithms to ensure the uniqueness and confidentiality of the account. 3. Collaboration with other bank systems and business processes. Privately generating a bank account number is illegal and invalid, which may lead to serious legal consequences, and it cannot be recognized and used normally by the bank. If there is a need to open a bank account, etc., you should follow the formal bank account opening process, go to the bank branch, provide the necessary identity information and related information to the bank staff, and the bank will handle the account opening for you in accordance with the law and regulations and generate a valid account number.