ORM，是一种程序技术，用于实现面向对象编程语言里不同类型系统的数据之间的转换。

Model

from django.utils import timezone



# Create your models here.



class UserInfo(models.Model):

    js_id = models.CharField(max_length=50,verbose_name=u'简书id')

    wx_id = models.CharField(max_length=20,verbose_name=u'微信id')

    nick_name = models.CharField(max_length=20, verbose_name=u"群昵称")

    gender = models.CharField(max_length=1, verbose_name=u"性别")

    age = models.IntegerField(verbose_name=u"年龄")

    major = models.CharField(max_length=30, verbose_name=u"专业")

    job = models.CharField(max_length=20, verbose_name=u"职业")

    hobby = models.CharField(max_length=50, verbose_name=u"兴趣爱好")

    level = models.CharField(max_length=5, verbose_name=u"Python基础")

    is_new = models.CharField(max_length=1, verbose_name=u"有无其他编程语言基础")

    learn_time = models.CharField(max_length=10, verbose_name=u"学习时间")

    has_book = models.CharField(max_length=100, verbose_name=u"有无Python相关书籍")

    creat_time = models.DateTimeField(default=timezone.now, verbose_name=u"创建时间")

settings

DATABASES = {

    'default': {

        'ENGINE': 'django.db.backends.mysql',

        'NAME': 'helloweb',

        'USER': 'root',

        'PASSWORD': '123456',

        'HOST': 'localhost',

        'PORT': '3306'

    }

}

migrate和makemigrations

• 使用【makemigrations】创建数据库表的变更脚本
• 使用【migrate】执行数据表变更