Xixin is a teaching communication software suitable for teachers, students and parents. Support PC, Android, iPhone. Users can add their real classes, teachers, classmates and family members by shaking, scanning QR codes and searching numbers.

Official, written, there are many interpretations. Generally interpreted as the government, it refers to the ancient government. It also refers to the party that holds the power, such as the "official" of the company, and "official website" is the official website. In addition, it also means that everything said by one party is reasonable and there is nothing wrong.

Official refers to the organizer of a social activity, or the promotion operator of a commercial product, that is, the organizer, which is a group organization or enterprise directly facing consumers.