django url 跳转

node2:/exam/mysite/polls#cat urls.py
from django.conf.urls import url,include

from . import views

urlpatterns = [
    url(r'^$', views.index, name='index'),
    # ex: /polls/5/
    url(r'^(?P<question_id>[0-9]+)/$', views.detail, name='detail'),
    # ex: /polls/5/results/
    url(r'^(?P<question_id>[0-9]+)/results/$', views.results, name='results'),
    # ex: /polls/5/vote/
    url(r'^(?P<question_id>[0-9]+)/vote/$', views.vote, name='vote'),

    url(r'^articles/2003/$', views.special_case_2003),
    url(r'^articles/([0-9]{4})/$', views.year_archive),
    url(r'^articles/([0-9]{4})/([0-9]{2})/$', views.month_archive),
    url(r'^articles/([0-9]{4})/([0-9]{2})/([0-9]+)/$', views.article_detail),
]


总入口:

node2:/exam/mysite/mysite#pwd
/exam/mysite/mysite
node2:/exam/mysite/mysite#cat urls.py
"""mysite URL Configuration

The `urlpatterns` list routes URLs to views. For more information please see:
    https://docs.djangoproject.com/en/1.11/topics/http/urls/
Examples:
Function views
    1. Add an import:  from my_app import views
    2. Add a URL to urlpatterns:  url(r'^$', views.home, name='home')
Class-based views
    1. Add an import:  from other_app.views import Home
    2. Add a URL to urlpatterns:  url(r'^$', Home.as_view(), name='home')
Including another URLconf
    1. Import the include() function: from django.conf.urls import url, include
    2. Add a URL to urlpatterns:  url(r'^blog/', include('blog.urls'))
"""
from django.conf.urls import url,include
from django.contrib import admin

urlpatterns = [
   url(r'^polls/', include('polls.urls', namespace='polls')),
   url(r'^books/', include('polls.urls', namespace='polls')),
   url(r'^admin/', admin.site.urls),
]



node2:/exam/mysite#python manage.py runserver 0.0.0.0:8000
Performing system checks...

System check identified some issues:

WARNINGS:
?: (urls.W005) URL namespace 'polls' isn't unique. You may not be able to reverse all URLs in this namespace

System check identified 1 issue (0 silenced).
August 18, 2018 - 16:45:12
Django version 1.11, using settings 'mysite.settings'
Starting development server at http://0.0.0.0:8000/
Quit the server with CONTROL-C.



http://192.168.137.3:8000/books/articles/2003/

/books/articles/2003/

1.若要从URL 中捕获一个值,只需要在他周围放置一堆圆括号:


node2:/exam/mysite/polls#cat urls.py
from django.conf.urls import url,include

from . import views

urlpatterns = [
    url(r'^$', views.index, name='index'),
    # ex: /polls/5/
    url(r'^(?P<question_id>[0-9]+)/$', views.detail, name='detail'),
    # ex: /polls/5/results/
    url(r'^(?P<question_id>[0-9]+)/results/$', views.results, name='results'),
    # ex: /polls/5/vote/
    url(r'^(?P<question_id>[0-9]+)/vote/$', views.vote, name='vote'),

    url(r'^articles/(2003)/$', views.special_case_2003),
	
	
def special_case_2003(req,aaa):
   print 'calling special_case_2003'
   print aaa
   print req
   print req.get_full_path();
   return HttpResponse(req.get_full_path()+'|'+aaa)
   
   
  2. 不需要添加一个前导的反斜杠,因为每个URL都有。 
  
  例如,应该是^articles而不是^/articles/
  
  3.每个正则表达式前面的'r'是可选的但是建议加上,他告诉Python这个字符串是"原始的" --字符串中
  
  任何字符都不应该被转移