2. The national online electronic student ID number is the student's personal identity code (19 digits), which is the unified code of the basic information of the personnel in the education system, and consists of type code (1 digit) and citizen identity number (18 digits) or personal identity self-coding (18 digits).
3. Student number: with ID number: G+ ID number. No ID number: J+ ID number generation rules.
Primary school students' safety education platform: watch short films of safety skills according to the study period, with specific contents such as drowning prevention and sexual assault prevention; Safety knowledge test, in which the main points in safety education videos are tested by questionnaire. Students can test again and again until they are fully mastered and get a score of 100 before completing their homework. ? After research, the questionnaire survey mainly focused on safety education such as "drowning prevention, sexual assault prevention and traffic safety", and was anonymous. Each assignment must be completed in sequence. Students should complete the corresponding homework according to their time at school. Students in the junior, middle and junior stages of the school are required to finish their homework together with the help of their parents.