this canteen does not belong to the food city mode.
The school canteen mainly provides catering services for school teachers and students, mainly buffet and set meal, not for profit, but pays more attention to food safety and nutritional balance.
The food city, on the other hand, aims at making profits and provides a variety of catering services, including snacks, fast food, desserts, etc., paying more attention to tastes and characteristics.
Therefore, there are great differences between the school canteen and the food city in business model, service target and food selection.