In recent years, there has been a growing emphasis on the advancement of academic qualifications, both among students and social and professional elites, as well as an increasingly demanding competitive environment. The number of candidates has risen over the years, reaching 2. 9 million by the end of 2018. On the one hand, there is strong market demand, and on the other hand, a large number of candidates face problems such as information lags, incompleteness, lack of knowledge about how to conduct professional courses efficiently and lack of effective methodological guidance. The spread of the mobile internet, with 4gs and even 5gs at a reduced rate, provides a good ground for online learning and service between the demand and supply of institutions and trainees. On the basis of the above-mentioned general background, it was developed. We followed our lead by offering online tutorials for study and research courses only for users. On the way, the total number of students served by the yuka institute exceeded 10,000. We have received accreditation from the university of guangcai, and the last two successful students who landed through the professional service of yuchang have reached an all-time high! The mouths of the elders are the source of trust. Thanks to the trust and approval of the users, the gold cup is not the same as the user's reputation. We've been on your journey!