上一篇：《时光荏苒》
1.
python manage.py migrate
2.
from django.contrib import admin from . import models admin.site.register(models.Article)
3.
from django.urls import path
from . import views
urlpatterns = [
path('articles/<int:year>/', views.year_archive),
path('articles/<int:year>/<int:month>/', views.month_archive),
path('articles/<int:year>/<int:month>/<int:pk>/', views.article_detail),
]4.
{{ somevariable|cut:"0" }}
django.template.Library.filter（）
register.filter('cut', cut)
register.filter('lower', lower)
@register.filter(name='cut')
def cut(value, arg):
return value.replace(arg, '')
@register.filter
def lower(value):
return value.lower()5.
print（django.get_version（）） python -m django --version django-admin startproject mysite
6.
from django.contrib import admin
from django.urls import include, path
urlpatterns = [
path('polls/', include('polls.urls')),
path('admin/', admin.site.urls),
]
-------------------------------------------------------
from django.urls import path
from . import views
urlpatterns = [
path('', views.index, name='index'),
]7.
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