7. Django

  • 7.1. Django tutorial

    There are many different Web frameworks under Python. Django is the most representative of the heavyweights. Many succe...
    2025-10-25 13:33:26 UTC
  • 7.2. Introduction to Django

    7.2.1. Basic introduction ¶ Django is an open source Web application framework written by Python. Using Django, Pyt...
    2025-10-25 13:33:25 UTC
  • 7.4. Django creates the first project

    In this chapter, we will introduce Django management tools and how to use Django to create a project. For the first project,...
    2025-10-25 13:33:27 UTC
  • 7.5. Django template

    In the previous chapter, we used django.http.HttpResponse () to output “Hello World!” . This method mixes the data with the ...
    2025-10-25 13:33:28 UTC
  • 7.6. Django model

    Django provides good support for a variety of databases, including: PostgreSQL, MySQL, SQLite, Oracle. Django provides a u...
    2025-10-25 13:33:27 UTC
  • 7.7. Django form

    HTML forms are a classic way to interact with a website. This chapter describes how to use Django to process form data submi...
    2025-10-25 13:33:26 UTC
  • 7.8. Django view

    7.8.1. View layer ¶ A view function, called View for short, is a simple Python function that accepts Web requests and...
    2025-10-25 13:33:25 UTC
  • 7.9. Django routing

    Simply speaking, routing is to judge the corresponding handler according to the URL link requested by the user, and return t...
    2025-10-25 13:33:26 UTC
  • 7.10. Django Admin management tools

    Django provides web-based management tools. Django automatic management tools are part of django.contrib. You can see it i...
    2025-10-25 13:33:28 UTC
  • 7.11. Django ORM-single table instance

    You need to read this chapter before you read it. Django 模型 Perform basic configuration and understand solutions to common...
    2025-10-25 13:33:26 UTC
  • 7.12. Django ORM-Multi-table instance

    The relationships between tables can be divided into the following three categories: 一对一 Each person corresponds to an...
    2025-10-25 13:33:25 UTC
  • 7.13. Django ORM-multiple table instances (aggregation and grouping queries)

    7.13.1. Aggregate query (aggregate) ¶ Aggregate query functions perform calculations on a set of values and return a ...
    2025-10-25 13:33:26 UTC
  • 7.14. Django Form component

    The Django Form component is used to initialize the page, generate HTML tags, and validate the data submitted by the user (d...
    2025-10-25 13:33:29 UTC
  • 7.15. Django user Authentication (Auth) component

    The Django user authentication (Auth) component is generally used in the login registration of users to determine whether th...
    2025-10-25 13:33:27 UTC
  • 7.16. Django cookie and session

    Cookie is a text file stored on the client computer and retains a variety of tracking information. Identifying the returne...
    2025-10-25 13:33:29 UTC
  • 7.17. Django middleware

    Django middleware is a hook that modifies Django request or response objects, which can be understood as a process between H...
    2025-10-25 13:33:27 UTC
《地理信息系统原理、技术与方法》  97

最近几年来,地理信息系统无论是在理论上还是应用上都处在一个飞速发展的阶段。 GIS被应用于多个领域的建模和决策支持,如城市管理、区划、环境整治等等,地理信息成为信息时代重要的组成部分之一; “数字地球”概念的提出,更进一步推动了作为其技术支撑的GIS的发展。 与此同时,一些学者致力于相关的理论研究,如空间感知、空间数据误差、空间关系的形式化等等。 这恰好说明了地理信息系统作为应用技术和学科的两个方面,并且这两个方面构成了相互促进的发展过程。