django安装及url配置

django下载安装

下载:pip install django==1.11.9

创建项目
	django-admin startproject qingqing
	cd qingqing 
启动项目:python manage.py runserver 127.0.0.1:8001
	cd qingqing 
创建app:python manage.py startapp xiaoqing

需要在项目的配置文件settings.py中添加一个app的配置
INSTALL_APPS = [
	
	'xiaoqing', app名称
]

INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    # 以下两种写法都可以
    'app01.apps.App01Config',
    #'app01',
]

两个框架模式

MVC  
	M:models数据库相关
	V:views 视图逻辑相关
	C:controller控制器 url分发 不同的路径找到不同的视图函数
MTV
	M:models数据库相关
	T:templates模板 ,HTML文件
	V:views 视图逻辑相关
	+ url控制器 不同的路径找到不同的视图函数
MVVM 后面介绍

url配置

urls.py文件中写在urlpatterns = []中
简单的路由
	from app01 import views
	url(r'^index/',views.index),
无名分组
	url(r'^index/(d+)/(d+)/',views.index), --- def index(request,n,m)  位置参数
有名分组
	url(r'^index/(?P<year>d+)/(?P<month>d+)/',views.index), -- def index(request,year,month) 关键字参数,参数顺序不要求


url(r'^index/$',views.index),
url(r'^index/(?P<num>d+)/,views.index),
视图函数参数默认值,
	def index(request,num='1'):
		print(num)

url路由分发之include

项目文件夹下的urls.py文件中的url写法:
    from django.conf.urls import url,include
    from django.contrib import admin
    from app01 import views
    urlpatterns = [
        # url(r'^admin/', admin.site.urls),
        #首页
        url(r'^$', views.base),

        url(r'^app01/', include('app01.urls')),

        url(r'^app02/', include('app02.urls')),

    ]
    
app01下urls.py内容写法
    from django.conf.urls import url
    from django.contrib import admin
    from app01 import views
    urlpatterns = [
        # url(r'^admin/', admin.site.urls),
        url(r'^$', views.app01base),
        url(r'^index/', views.index),
    ]
    
app02下urls.py内容写法   
    from django.conf.urls import url
    from django.contrib import admin
    from app02 import views

    urlpatterns = [
        # url(r'^admin/', admin.site.urls),
        url(r'^$', views.app02base),
        url(r'^home/', views.home),

    ]