Django from Scratch: Build a Simple Blog System with ORM and Template Engine in 3 Steps

This article introduces how to quickly build a blog system displaying article lists using Django, with a core understanding of ORM operations for data and template rendering for pages. Step 1: Environment preparation and project initialization. After installing Django, create the project `myblog` and the app `blog`. The project structure includes configuration directories, app directories, and command-line tools. Step 2: Define data models using ORM. Write a `Post` class (with fields: title, content, publication time) in `blog/models.py`, which is automatically mapped to a database table. Activate the model (configure `settings.py`) and execute migrations to generate the table. Step 3: Views and template rendering. Write a view function in `views.py` to retrieve article data and configure routing to distribute requests. Render the article list in the template `index.html` using Django template syntax, supporting loops and variable output. Running `python manage.py runserver` allows access to the blog. The core is to master Django's ORM model definition, view processing, and template rendering processes, with potential for subsequent feature expansion.