different meanings, different functions and different grades.

1. Different meanings: Canteen refers to the catering service places where schools, factories, hospitals and other units supply fixed groups such as employees and students, while canteen refers to the catering service places that supply personal or family consumption.

2. Different functions: The canteen mainly provides meals for employees of companies or institutions. Its food types are relatively fixed, consisting of meals, dishes, etc., and its price is relatively uniform, mainly based on cheapness, while the restaurant is more open to the public. In addition to providing food, it also provides various private rooms, special catering and banquet services to meet the needs of different customers.

3. Different grades: The dining hall is generally decorated with low grades, while the dining room is decorated with different grades according to different positioning and clients. Some restaurants are luxuriously decorated with elegant environment, while others are simple and fashionable.