Overseas street has invented the o&o business model for overseas imports (online and offline). To put it simply, one centre, that is, the operation of imported goods abroad; two basic points: the opening of an entity's convenience store in conjunction with an online power store, which allows for multiple returns on an operator's input, minimizes the cost of investment and increases the return on investment indefinitely. This o&o business model (onlineand offline) was hailed by economists as an innovative business model with internet thinking in 2017. Supermarkets: generally refer to the opening of commodity displays, the self-shopping of customers, the queuing of cash, and the operation of shops dominated by fresh and fresh food and groceries. Supermarkets are self-serving, open retail outlets. There are 200,000 supermarkets in europe and america. The convenience stores are usually located in residential areas, schools and high-volume areas, with business space ranging from ...