Restaurant is a Chinese vocabulary, pronounced as cā n gu n, which is also called restaurant, restaurant, restaurant or restaurant. It is a place where customers buy and enjoy cooked food and drinks. The term restaurant covers eating places in different places and provides different cooking styles. From Guo Moruo's "Find Your Dead Friend": "At that time, you stayed. The day before I left, you were in a restaurant for a farewell dinner."

There are many kinds of restaurants, ranging from cheap restaurants nearby that provide lunch for office workers to regular restaurants that provide food and wine. According to the style of the restaurant, customers' clothes range from light color to formal dress.

According to the size of the restaurant, it can be divided into:

1. Super-large restaurant: refers to a restaurant with a business area of over 3000m2 (excluding 3000m2) or a dining seat of over 1000 (excluding 1000).

2. Large restaurant: refers to a restaurant with a business area of 500-3000m2 (excluding 500m2 and including 300m2) or a seating capacity of 250- 1000 (excluding 250 and including 1000).

3. Medium-sized restaurant: refers to a restaurant with a business area of 150 ~ 500 m2 (excluding 150 m2, including 500m2) or 75 ~ 250 dining seats (excluding 75, including 250).

4. Small restaurant: refers to a restaurant with a business area of less than150m2 (including150m2) or a seating capacity of less than 75 (including 75).

If the area and quantity of dining seats belong to two categories, the category of restaurant shall be the larger one.