2.django 操作笔记

1.django 常用命令

#生成迁移文件  
python manage.py makemigrations

#执行迁移      
python manage.py migrate

2.render 参数提示： ctl + p

3.django html模板语法

<h1>Student list</h1>
<ul>
    {% for stu in <students></students> %}
        <li>{{ stu.s_name }}</li>
    {% endfor %}
</ul>

4.django项目下创建新的工程

#startapp
(dj111) [root@localhost HelloDjango]# python manage.py startapp Three

#在项目setting.py的INSTALLED_APPS中注册app

#app下创建urls.py并添加路由
from django.conf.urls import url
from Three import views
urlpatterns = [
    url(r'^index/', views.index),
]

#将app的urls在工程的urls中注册
urlpatterns = [
    url(r'^admin/', admin.site.urls),
    url(r'^hello',views.hello),
    url(r'^hehe',views.hehe),
    url(r'^index',views.index),
    url(r'^home', views.home),
    url(r'two/',include('Two.urls')),
    url(r'three/',include('Three.urls')),

]

#app中的views.py添加内容
def index(response):
    pass    

#app下创建目录templates，并在templates目录下创建html文件

5.django shell

(dj111) [root@localhost HelloDjango]# python manage.py shell
>>> from Two.models import student
>>> stu = student.objects.all()
>>> for s in stu:
...     print(s.s_name)
... 
Jack jonse
Jerry10
Jerry40
Jerry93
...