django学习--URL Dispatcher
干净的URL非常重要，django对此提供了充分的支持。
django使用URLConf模块匹配请求的URL对应哪个function,URLConf是一个普通的python moudle。
URLConf模块实例(urls.py):
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from django.conf.urls.defaults import *urlpatterns = patterns('', (r'^articles/2003/$', 'news.views.special_case_2003'), (r'^articles/(\d{4})/$', 'news.views.year_archive'), (r'^articles/(\d{4})/(\d{2})/$', 'news.views.month_archive'), (r'^articles/(\d{4})/(\d{2})/(\d+)/$', 'news.views.article_detail'),)?django对接收到的请求url的路由流程:
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