The rules for passing names on this platform are as follows:
1. Simplify names and other important information.
2. Avoid using usernames that rely solely on numbers or letters.
3. Avoid using the exact same username as others.
4. Choosing a safe password can improve the security of your account.
The 12306 website is a railway customer service center. In order to protect the security of the account, you cannot use only numbers when naming, nor can it be exactly the same as others.