The front cabinet refers to the cashier, and the rear cabinet refers to the trunk. According to public comments, the front cabinets are mostly used for jewelry, jade, gold, ornaments, watches, glasses and other display cabinets, such as the cashier, and the back cabinets refer to the back cabinets, trunk cabinets and other cabinets, which play the role of storing space and beautifying the background without causing a sense of clutter. As an indispensable supporting facility of shopping malls and supermarkets, the cashier has been paid more and more attention by customers.