1 233 online school is a professional vocational education and training institution with many years of vocational education and training experience and rich teaching resources. The courses offered are comprehensive, including theoretical knowledge, case analysis, mock exams, counseling services and sprint courses before exams. Xu Ziyi's online course is a personal online course platform founded by Xu Ziyi, a well-known vocational examination training lecturer. The course content is concise and not as rich as the 233 online school.

2.233 The teachers in the online school are experienced, with detailed explanations, and pay attention to the explanation and analysis of theoretical knowledge. At the same time, it will also be explained in combination with actual cases to help students better understand the knowledge points. Xu Ziyi's online class is given by Xu Ziyi himself, and the explanation content is concise and clear, not as detailed as 233 online school.