Smart Learning Network is a big data personalized teaching system launched by KU Xunfei for the school's daily homework, exams and developmental teaching and learning evaluation needs, aiming to provide users with a simpler and easier to use system operation and comprehensive and perfect resource services, through the analysis of big data to fully tap the value of the campus exams through the cloud-based services of the PC and the mobile terminal integrated program, for each teacher and student to provide The informationized environment and services for targeted teaching and individualized chemistry.