django shell创建、取出、排序打印

231fds

models.py

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from django.db import models class Person(models.Model): name=models.CharField(max_length=30) age=models.IntegerField() def __unicode__(self): return self.name

./manage.py shell
Person.objects.order_by("id")
[<Person: lanny>, <Person: mxl>, <Person: wang>, <Person: zhang>, <Person: zhao>, <Person: li>]

#切片打印出列表

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Person.objects.order_by("id")[:1] [<Person: lanny>] Person.objects.order_by("id")[:2] [<Person: lanny>, <Person: mxl>]

#倒序排列

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Person.objects.order_by("-id")[:2] [<Person: li>, <Person: zhao>] Person.objects.all() [<Person: lanny>, <Person: mxl>, <Person: wang>, <Person: zhang>, <Person: zhao>, <Person: li>]

创建、查询

1 2	Person.objects.create(name=lanny,age=23) Person.objects.get(name="lanny")