During college, you must learn basic knowledge (mathematics, English, the use of computers and the Internet, as well as basic courses required by this major, such as financial courses in business schools). Many seemingly advanced technologies in the application field will be replaced by new technologies or tools in a few years, and only the study of basic knowledge can benefit for life. Without a good foundation, it is difficult for college students to truly understand advanced applied technology. In many universities in China, professors have more teaching experience in basic courses than in the latest technology.