2.python----模型类

from django.db import models
from django.utils import timezone
from django.contrib.auth.models import User


# Create your models here.
class BlogArticle(models.Model):
    title = models.CharField(max_length=300)
    author = models.ForeignKey(User, related_name="blogs_posts",on_delete=models.CASCADE)
    body = models.TextField()
    publish = models.DateTimeField(default=timezone.now())

    class Meta:
        ordering=("-publish",)

    def __str__(self):
        return  self.title

命令行执行

python manage.py makemigrations **迁移**

python manage.py sqlmigrate blog 0001 **更新到数据库**

>python manage.py migrate **创建数据库**