1,url('^index/$',view .index ,{'msg':msg})
默认匹配不上加/匹配。可设置APPEND_FLASH=FALSE取消 加参数后视图函数 , kwargs={'msg':msg}
2.又名无名分组
^page/(\d+)/$ 视图层def index(request,n) reverse('index', args=(n,)
^page/(?P<num>\d+)/$ 视图层def index(request,num) url=reverse('index(别名)',kwargs={'num':num} return (url)
3,
url(r'^app/',include('app.urls',namespace= 'app')),