The snack bar is not big. There are only simple long tables and comfortable soft chairs, which are simple and suitable for eating. It doesn't take long to finish eating, and the environment is fresh and elegant. As a popular catering concept, light dining is more common in first-class cities, such as leisure restaurants, take-away restaurants and light meals. Mainly restaurants with standardized dishes, light meals can not only be eaten in class, but also have a large proportion of takeout, which can be opened all day. Restaurants with heavy meals are fully equipped halls. It can be used not only as a place for large banquets, wine banquets and tea parties, but also as a place for large international conferences, large trade fairs and festivals. Heavy catering refers to the traditional catering mode, such as dinner cooking, star-rated restaurants, Chinese restaurants and so on. This kind of food generally belongs to heavy catering, because heavy catering focuses on high rent, high salary of personnel and high raw materials. At the same time, we mainly eat in the lobby, only lunch and dinner.