Can learn something. For students who are about to graduate from colleges or have just joined the work, through short-term professional practice training, they can quickly adapt to the new core jobs, and can flexibly master and deal with all faults caused by software and hardware through the powerful diagnostic function of the software itself. So as to achieve the ability to comprehensively deal with common fault handling problems on site. Participants in the training should have some basic knowledge of electrical appliances or one to two years of practical experience in electrical engineering, and understand the basic principles of electrical control.