执行迁移python manage.py migrate
使用模型
4、字段:AutoField,BooleanField,CharField,IntegerField,FloatField,DateField...,TimeField,DateTimeField,DecimalField,FileField,ImageField
AutoField: 无需指定,自增长id
BooleanField: Boolean...Boolean类型, 支持None, True, False
CharField(max_length=字段长度20): 字符串
IntegerField: 整数
FloatField: 浮点数
DateField...OneToOneField,ManyToManyField
BookshelfInfo
BookInfo
bookshelf = models.ForeignKey(Bookshelf)
用一访问多:...null
gt / gte / lt / lte: > / >= / < / <=
例子: BookInfo.books.filter(book_type_id__exact=1)
in: 是否在该