This lab uses Alibaba Cloud Elastic Compute Service (ECS). In the lab, Node.js and Django are mainly used to implement the common architecture of frontend and backend separation for websites. In such a website architecture, all the code (such as HTML, CSS, and JavaScript files) required by the frontend browser is generally deployed in a Node.js server, which provides stable frontend services and pages for access. The backend uses various mainstream web services (such as Django, Apa