Python Web Static Resource Management: Correctly Including CSS and JS Files in Flask

This article introduces methods to incorporate static resources like CSS and JS in Flask. Static resources, including CSS (styling), JS (interactivity), and images, should be placed in the `static` folder at the project root directory (automatically mapped to the `/static/` path by Flask). Template files are stored in the `templates` folder. The project structure should include `static` and `templates`. Static resources can be organized into subfolders by type (e.g., `css/`, `js/`). Within templates, use `url_for('static', filename='path')` to reference resources, for example: ```html <link rel="stylesheet" href="{{ url_for('static', filename='css/style.css') }}"> <script src="{{ url_for('static', filename='js/script.js') }}"></script> ``` Common issues: Path errors (such as incorrect filenames or missing subfolders) may result in 404 errors. Ensure the `static` folder exists and filenames are correct. Key points: Place static resources in `static`, use `url_for` for incorporation, and maintain a standardized structure to avoid issues.