"Saner" column is an educational application centered on the high-quality resources of local famous schools and famous teachers, covering the knowledge points of primary schools, junior high schools and senior high schools. The application also has the functions of "student roll call" and "practice". This application can meet the counseling needs of family education scenes and is suitable for IPTV users. Offering courses of all subjects from primary school to high school, mainly aiming at solving and analyzing the difficulties and key points of the course, including: on-demand courses, on-demand topics, finding teachers, free experience, signing in, course learning records, problem-making records and other functions. It can be ordered online through IPTV (path: home page-information-education), and the monthly fee is: 30 yuan/month for grade single course; Buy a few words and send them to others: 90 yuan/Month; Users of the thematic on-demand capping billing platform will not provide this service for the time being: 10 yuan, 15 yuan, 20 yuan and 25 yuan (each thematic package is valid for 30 days), and the monthly capping value is 40 yuan. For example, the user paid 100 yuan in cash on demand that month, but actually only received 40 yuan. For more service offers, click on "official website" Customer Service 2 18 below to answer your questions.