Date of birth should be filled in in the format of year-month-day, in which year should be filled in with 4 digits, month and day should be filled in with 2 digits, separated by a short horizontal line "-". Correctly filling in the date of birth can avoid mistakes and confusion in the verification and management of personal information.

When filling in personal information, you need to pay attention to protecting personal privacy and information security, and avoid leaking sensitive information to others or bad institutions. At the same time, we must also abide by relevant laws and regulations and social ethics, and we must not use personal information to commit crimes or other bad behaviors.