摘自：http://www.usingenglish.com/forum/ask-teacher/46869-may-not-may-not.html

What is the difference between "may be not" and "may not be" ?

Example:
- She may be not a student.
- She may not be a student.
==> Do the two sentences have the same meaning?

[1] She may be not a student, ...
Meaning ...

安装 comments 应用

1. 编辑 settings 文件，INSTALLED_APPS 项添加 'django.contrib.comments',：

   INSTALLED_APPS = (
       # ...
       'django.contrib.comments',
       # ...
   )
   

2. 执行 python manage.py syncdb 创建评论表。

3. 编辑 urls.py 文件，添加评论相关的 url：

   urlpatterns = patterns('',
       # ...
       url(r'^comments/', include('django.contrib.comments.urls')),
       # ...
   )
   

示例 views

def display_topic(request, topic_id):
    topic = Topic.objects.get(id=topic_id)
    return ...

在 django 中使用 Paginator 可以很方便的实现分页功能，下面就通过一个具体的例子来讲讲如何使用 Paginator。

在 view 中使用 Paginator

from django.core.paginator import Paginator
from django.core.paginator import EmptyPage
from django.core.paginator import PageNotAnInteger
from hello.models import Topic


def index(request):
    limit = 3  # 每页显示的记录数
    topics = Topic.objects.all()
    paginator = Paginator(topics, limit)  # 实例化一个分页对象

    page ...