There is no limit to downloading the theme network. The subject network-school association is an online learning software launched by the subject network, which covers the curriculum resources of all subjects from primary school to high school, including video, audio, documents and other formats. Convenient for users to download and learn. As an educational resource website, the theme network has a large number of educational resources. At the same time, after four years of cultivation in the middle school market and the education market, the subject network has a wide user group among middle school students and graduates, and this group has expanded to parents and people with educational needs in society. Subject network mainly serves students, teachers and educational institutions, aiming at providing convenient and efficient learning and teaching tools for students, teachers and educational institutions. Subject network resources are well-made, accurate in content and updated in time, and are well received by users. At the same time, the subject network also actively promotes the concept of educational informationization and modernization, and has made positive contributions to improving the level and quality of education in China.