1. 创建项目 —— django-admin startproject mysite

2. 创建应用 —— python manage.py startapp polls

3. Hello-状态1   

   polls/views.py

   from django.http import HttpResponse

   def index(request) :

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

    polls/urls.py

    from django.conf.urls import url 

    from . import views 

    urlpatterns =  [

        url(r'^$',views.index,name='index'),

    ]

    mysite/urls.py

    from django.conf.urls import include,url

    from django.contribi mport admin

    urlpatterns=[

        url(r'^polls/',include('polls.urls')),

        url(r'^admin/',admin.site.urls),

    ]