Based on the design and implementation of WeChat applet online supermarket, the front end of this applet: WeChat applet native framework, WXML WXSS Javascript, and the back end: cloud development of applets, database, cloud function, cloud storage, and CMS content management system (background management) developed by cloud, etc, There are mainly four pages: home page, commodity classification interface, shopping cart, personal center, home page: carousel map, search function, new product recommendation, store information, etc. Commodity classification interface: consists of two parts, on the left is the commodity classification display, showing the name of commodity classification, which is distinguished according to the type of commodity; The name and picture of the current commodity of the corresponding category shown on the right can be seen, shopping cart: add goods, delete goods, shopping cart management, payment, personal center: user login, view orders, view evaluation