Django的安装和新项目创建-优快云博客

本文档介绍了如何使用Python的pip工具安装Django 3.1.7，并通过django-admin命令创建新的项目。在创建项目后，详细列出了项目的初始文件结构，包括settings.py、urls.py和manage.py。接着演示了启动开发服务器的过程，并提醒用户可能需要运行迁移命令来确保项目正常运行。最后，简要说明了访问web应用的方法。

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1. 用python的pip工具安装

pip install Django==3.1.7

验证安装成功，如下命令行
如果能返回如下帮助提示信息，表示安装成功

 D:\git>django-admin

Type 'django-admin help <subcommand>' for help on a specific subcommand.

Available subcommands:

[django]
    check
    compilemessages
    createcachetable
    dbshell
    diffsettings
    dumpdata
    flush
    inspectdb
    loaddata
    makemessages
    makemigrations
    migrate
    runserver
    sendtestemail
    shell
    showmigrations
    sqlflush
    sqlmigrate
    sqlsequencereset
    squashmigrations
    startapp
    startproject
    test
    testserver

2. 创建新项目

以下命令创建好demo project

Sandwich@DESKTOP-VUGTSPF MINGW64 /d/git/django
$ django-admin startproject demo

初始项目的文件

项目配置文件：settings.py
项目路由配置文件：urls.py
项目管理文件： manage.py

3. 启动项目

Sandwich@DESKTOP-VUGTSPF MINGW64 /d/git/django/demo
$ python manage.py runserver
Watching for file changes with StatReloader
Performing system checks...

System check identified no issues (0 silenced).

You have 18 unapplied migration(s). Your project may not work properly until you apply the migrations for app(s): admin, auth, contenttypes, sessions.
Run 'python manage.py migrate' to apply them.
March 10, 2021 - 01:01:49
Django version 3.1.7, using settings 'demo.settings'
Starting development server at http://127.0.0.1:8000/