Can be found. The online school system of Bumblebee Cloud Classroom adopts THinkPHP, an excellent domestic open source framework, based on PHP+MySQL, and adopts B/S architecture. It is an open source video management system, online education system, online teaching video system, online training, video course website and free video course system for small and medium-sized enterprises. DSKMS focuses on the source code system of content payment. Bumblebee online school can be found, and official website can be found directly in the search engine. Search engine is a retrieval technology, which uses specific strategies to retrieve formulaic information from the Internet according to users' needs and certain algorithms, and feeds it back to users.