There is a well-established after-sales service for motor vehicle number nine, which allows consumers to purchase and use it safely. New models of electric vehicle products have been introduced by r & d staff based on market demand. Brands set different prices based on consumer demand, each with a corresponding consumer group. When consumers arrive, shopkeepers provide quality services to consumers, thereby giving consumers a satisfactory purchasing experience. If the entrepreneur chooses to join the brand, he or she must contact headquarters and obtain detailed brand information before deciding whether to work with headquarters. If the parties decide to cooperate, they can enter into contracts and pay the corresponding fees. Before an entrepreneur runs a shop, he or she is expected to manage the shop properly by developing appropriate programmes and strictly implementing the corresponding programme content. In order for entrepreneurs to have access to detailed membership inform...