官方文档地址
https://docs.djangoproject.com/en/1.8/topics/db/queries/#complex-lookups-with-q-objects
F查询
contains查询
Entry.objects.get(headline__contains=‘Lennon‘) Roughly translates to this SQL: SELECT ... WHERE headline LIKE ‘%Lennon%‘;
icontains查询
q.exclude(body_text__icontains="food")
exact 查询
Entry.objects.get(headline__exact="Man bites dog")
iexact查询
Blog.objects.get(name__iexact="beatles blog")
Q查询：
from django.db.models import Q
Q(question__startswith=‘What‘)
Q(question__startswith=‘Who‘) | Q(question__startswith=‘What‘)
This is equivalent to the following SQL WHERE clause:
WHERE question LIKE ‘Who%‘ OR question LIKE ‘What%‘
Q(question__startswith=‘Who‘) | ~Q(pub_date__year=2005)
Poll.objects.get(
Q(question__startswith=‘Who‘),
Q(pub_date=date(2005, 5, 2)) | Q(pub_date=date(2005, 5, 6))
)
... roughly translates into the SQL:
SELECT * from polls WHERE question LIKE ‘Who%‘
AND (pub_date = ‘2005-05-02‘ OR pub_date = ‘2005-05-06‘)
原文：http://www.cnblogs.com/schangech/p/5630178.html