Pinyin of students' names plus four numbers. The initial account of the safety education platform is set by the class teacher. In order to facilitate students' memory, the account number is set to the pinyin of the student's name and the last four digits of the student number, and then it is imported into the system in a unified way. Therefore, the initial account of the safety education platform is the pinyin of the student's name plus the last four digits of the student number.