路由分发

        django每一个app下面都可以有自己的urls.py路由层，templates文件夹，static文件夹

        项目名下urls.py(总路由)不再做路由与视图函数的匹配关系而是做路由的分发

    from django.conf.urls import include

    # 路由分发  注意路由分发总路由千万不要$结尾

    url(r'^app01/',include(app01_urls)),

    url(r'^app02/',include(app02_urls))

    # 在应用下新建urls.py文件，在该文件内写路由与视图函数的对应关系即可

    from django.conf.urls import url

    from app01 import views

    urlpatterns = [

        url(r'^index/',views.index)

    ]

    名称空间(了解)

        url(r'^app01/',include(app01_urls,namespace='app01')),

        url(r'^app02/',include(app02_urls,namespace='app02'))
　　或
　　　　　url（r'^app01/' include(app01.urls）,

    app01.urls.py

        from django.conf.urls import url

        from app01 import views

        urlpatterns = [

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

        ]
　　　　　　#或取名字时取独一无二的，这样就不会有冲突

    app02.urls.py

        from django.conf.urls import url

        from app02 import views

        urlpatterns = [

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

        ]

    app01.views.py

    reverse('app01:index')

    app02.views.py

    reverse('app02:index')