Django的简单的命令与并实现第一个页面

django--version : 1.9.8
一、 创建python虚拟环境，安装django

二、创建一个django项目

命令:django-admin startproject 项目名称

eg:

G:\django_learn>workon testvir
(testvir) G:\django_learn>django-admin startproject django_learn

执行完成将成功创建一个django项目django_learn并生成目录

--- django_learn

        ---settings.py
        ---url.py
        ---wsgi.py

--- manage.py

1. settinngs.py
   包含了项目的默认设置，包括数据库信息，调试标志以及其他一些工作的变量
2. url.py
   负责把URL模式映射到应用程序
3. wsgi.py
   负责项目的上线
4. manage.py
   Django项目里面的工具，通过它可以调用django shell和数据库等。

三、创建一个app

命令:python manage.py startapp 应用名

eg:

(testvir) G:\django_learn\django_learn>python manage.py startapp blog

(testvir) G:\django_learn\django_learn>dir

成功创建一个名为blog的app包含

admin.py
apps.py
migrations
models.py
tests.py
views.py
__init__.py

1. views.py
   视图操作文件

四、利用django制作第一个页面

1. 配置settings.py文件将app导入进去

   INSTALLED_APPS = [
   'django.contrib.admin',
   'django.contrib.auth',
   'django.contrib.contenttypes',
   'django.contrib.sessions',
   'django.contrib.messages',
   'django.contrib.staticfiles',
   'blog'  # 将blog导入settings.py
   ]

2. 配置url.py文件，设置路由

   from django.conf.urls import url
   from django.contrib import admin
   from blog import views
   urlpatterns = [
   url(r'^admin/', admin.site.urls),
   url(r'^time_show/', views.time_show),
   ]

3. 配置views.py,设置视图

   import time
   from django.shortcuts import HttpResponse
   # Create your views here.
   def time_show(request):
   return HttpResponse(time.asctime())

五、启动django项目
命令:python manage.py runserver
默认端口8000
eg:

(testvir) G:\django_learn\django_learn>python manage.py runserver
Performing system checks...

System check identified no issues (0 silenced).

You have unapplied migrations; your app may not work properly until they are applied.
Run 'python manage.py migrate' to apply them.
May 03, 2018 - 22:54:14
Django version 1.9.8, using settings 'django_learn.settings'
Starting development server at http://127.0.0.1:8000/
Quit the server with CTRL-BREAK.

在浏览器中输入http://127.0.0.1:8000/time_show/
显示如下图