(The current very popular front-end development technology course is almost a compulsory course for front-end and peripheral developers. To put it simply, the big front-end is the collective name of the mobile terminal and the front-end, including iOS, Android, FE, cross-platform technology and surrounding ecosystems, and the cross-platform technology acts as a bridge connecting the mobile terminal and the front-end. At present, the first-tier manufacturers are very active in promoting their own cross-platform ecology, so students who are interested in taking the road of architects should seize the opportunity to learn.)