Gu Jingsi Interior Design Training Camp and Orange Art Workshop Training School. According to the brief introduction of Gu Jingsi's interior design training camp, the training camp has cad training and design training, and is located in E District of Dewey New Town, Datong City. According to the training of school profile Orange Art Workshop, we know that the school has cad training and sketchup training, which is located opposite the Red Star Macalline on Dewey Avenue in Datong City. Cad is computer-aided design, which is a tool for modern product design and engineering design based on computer drawing and three-dimensional digital modeling technology, and is widely used in various fields of science and technology.