The software for robbing courses is a product developed by college students to solve the problem that it is difficult for users to choose better courses in the course selection system at a specific time. The software for robbing classes is a plug-in based on the educational administration system. Driven by the tide of course selection in colleges and universities, the use of class-grabbing software can increase the probability of choosing a good class. Electsys++ plug-in electsys++ is famous for its convenient course selection function and excellent user experience. The writer is a junior in the School of Information Security and Engineering. When installing electsys++ plug-in, you can judge whether some courses are full or not, or inquire whether the specific class time conflicts. The version number of Electsys++ is 2. 1.0. Chrome browser is recommended. Hduin Course Selection Software Hduin "software supports Android and IOS systems, and is independently developed by four students of Hangzhou Dianzi University. The convenience of "Hduin" software is that it can communicate with the educational administration system of the school. Students can log in directly through their student number and password, and they can see their class time, place and other information. At the same time, you can also check the popular courses of the school, teachers' scores and so on in this software. Online course selection is a major function of Hduin. Students can go to the course selection window of the school educational administration system and choose courses directly on their mobile phones. The process is also very simple.