"Topic Interest" is an online topic brushing website with simple and easy operation and beautiful interface. It provides a large number of operation topic topics for students who love computer knowledge, and has the functions of topic browsing, code writing, test execution, discussion, problem solving, flow chart drawing, temporary notes making, exporting and downloading codes and notes, etc. At the same time, it is also equipped with a background management system to meet all the data operation and management functions of the website. The background management system adds authority management to facilitate the establishment of a tripartite teaching platform for administrators, teachers and students in the subsequent website update iteration plan, which integrates students' pre-class exercises, teachers' lectures and students' after-class digestion of knowledge into a set of processes to help students contact the knowledge layer more comprehensively and widely.