Online education is a significant component of modern education.Usually,students can not do self-test through online education.In order to solve the problem,the article analyzes the basic characteristics and requirements of self-learning and self-tests,and puts forward a scheme of grouping up test-papers according to the student's request.The system offers many kinds of parameters of grouping up test-papers for students,such as test subjects,study schedules,test ranges,the difficult degrees of test-paper,ty...