1. 创建项目

mkdir djangotutorial

使用django命令创建项目

django-admin startproject mysite djangotutorial

启动项目命令：

python manage.py runserver

创建应用

python manage.py startapp polls

2. 创建页面步骤

打开polls/views.py，加入访问页面定义域

from django.http import HttpResponse


def index(request):
    return HttpResponse("Hello, world. You're at the polls index.")

创建urls.py，并编辑内容

from django.urls import path

from . import views

urlpatterns = [
    path("", views.index, name="index"),
]

配置mysite项目中的根 URLconf，使其包含中定义的 URLconf polls.urls

from django.contrib import admin
from django.urls import include, path

urlpatterns = [
    path("polls/", include("polls.urls")),
    path("admin/", admin.site.urls),
]

3. Django 实例中激活的所有 Django 应用程序的名称

image.png

建表命令,创建所有必要的数据库表

python manage.py migrate

4. 创建模型

在polls/models.py文件中编辑

from django.db import models


class Question(models.Model):
    question_text = models.CharField(max_length=200)
    pub_date = models.DateTimeField("date published")


class Choice(models.Model):
    question = models.ForeignKey(Question, on_delete=models.CASCADE)
    choice_text = models.CharField(max_length=200)
    votes = models.IntegerField(default=0)

引入该polls应用，在 mysite/settings.py中添加polls的配置类

INSTALLED_APPS = [
    "polls.apps.PollsConfig",
    "django.contrib.admin",
    "django.contrib.auth",
    "django.contrib.contenttypes",
    "django.contrib.sessions",
    "django.contrib.messages",
    "django.contrib.staticfiles",
]

使用迁移命令生成迁移文件

python manage.py makemigrations polls

将迁移文件同步到数据库中

python manage.py migrate

5. Django Admin 介绍

创建管理员账号

python manage.py createsuperuser

启动项目，访问:http://127.0.0.1:8000/admin

进入polls/admin.py，添加问题管理到页面

from django.contrib import admin

from .models import Question

admin.site.register(Question)

django基础使用技巧