Hot pots, for which men, women and children are crazy, are national foods; supermarkets, a place where shopping can be done at will, and if these two things are linked together, produce foods such as pots and barbecues. The zhang dynamite roasted foods, which brought the supermarket's business model to its choice, so that everything could be seen in the naked eye, and so that all potential problems could be brought to light. The food for roasted foods, like those in supermarkets, is well-segregated in the cupboards with easy access to freshness, colour, quality, etc. In the selection of food products, customers are free to choose what they want from nearly 100 quality food items, without compulsory consumption, or to buy and sell and take as much as they want, to retain the choice of the customer, and to avoid excessive waste or infrequent consumption that increases customer satisfaction and comfort。