In fact, there is no need to report to class. It is relatively easy to take the computer level 2 exam, which tests the basic knowledge of computers and the basic skills of programming in high-level computer languages and debugging on computers. In addition to some basic computer knowledge, I mainly study one advanced computer programming, which may be different in each school, mainly including language programming (C, C++, Java, Visual Basic), database programming (including Visual FoxPro, Access) and advanced application of MS Office. As long as you master one of the advanced computer languages, it is not difficult.