[Django rapid development 0] Quickly build the environment and get the hello world of the django project

Basic commands of Django framework

django-admin startproject # Create a Django project
django-admin startapp # Create a Django application

Create a Django project

1. 打开cmd，cd到项目目录下，新建一个文件夹，然后cd到该文件夹下
2. 使用 # pipenv install 命令创建虚拟环境 #pipenv shell 进入虚拟环境
3.安装django: # pip install django
4.安装成功后，创建一个Django项目：# django-admin startproject [输入创建的项目名称]
5.创建一个Django应用： # django-admin startapp [应用名]
6.使用pycharm打开该项目，在file>>setting>>Python Interpreter中选择刚刚pipenv生成的环境。如图1-1
7.在Terminal中输入：# python manage.py runserver
如果运行成功则可以得到如下图1-2则表明前面的配置成功！！

Pycharm configuration virtual environment
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Django之hello world

The contents of the project after initialization are as follows:

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To run a hello world program, you first need to write the view function hello in views.py in the application-level file directory:

from django.shortcuts import render
from django.http import HttpResponse


# Create your views here.
def hello(request):
    return HttpResponse('hello world')

Next, create a urls.py file under this project, and register the route of the hello function to the application level:

# login.urls.py
from django.urls import path

import login.views

urlpatterns = [
    path('hello', login.views.hello)
]

But thinking about the application-level routing configuration, it is obvious that the project level cannot be understood. Just like the ID card registered in the local police station, the ID card is not transmitted to the national identity system, and the police outside will definitely only check when they are looking for you. There is no such person, so it needs to be configured at the application level. That is, the following registration behaviors are performed in the application level urls.pyand in the application level settings.py:

# blog/urls.py
from django.contrib import admin
from django.urls import path,include
import login.views
urlpatterns = [
    path('admin/', admin.site.urls),
    path('login/', include('login.urls'))

]

blog/settings.py
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After completion, enter >>> in Terminal python manage.py runserver

Then enter in the browser: http://127.0.0.1:8000/login/helloyou can get the following hello world
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