django中models

字段类型：

    models.CharField　　
    models.ForeignKey
    models.DateTimeField
    models.BinaryField
    models.BooleanField
    models.IPAddressField
    models.IntegerField
    models.FileField
    models.ImageField

Meta:

class Meta:
        verbose_name = '用户留言信息'
        verbose_name_plural=verbose_name
        db_table = 'usermessage'
        ordering = 'object_id'

视图中添加数据到数据库：

1、create 一步到位

UserMessage.objects.create(name='yun',email='2@2.com',address='shanghai',message='nihao')

2、save 先创建模型实例，再设置字段值，最后保存

user_message = UserMessage()
user_message.name = '天天'
user_message.email = '3@3.com'
user_message.address = '洛阳'
user_message.message = '不错'
user_message.save()

删除：

message.delete()

渐变 --> 突变