Secondly, students can register online through AA and choose online or offline courses according to their own needs. Product development includes live class, online class, online class, group buying class, lucky class and other course modes. The set video class realizes one-time recording and multiple use of the course. This not only maintains the advantages of offline education, but also helps institutions break through the limitations of time, space and cost, effectively resisting the impact of online education in terms of price, time, space and teaching form.