text: from django.db import models
  
  # Create your models here.
  class Area(models.Model):
      """
      行政区别
      """
      name = models.CharField(max_length=20,verbose_name='名称')
      parent = models.ForeignKey('self',on_delete=models.SET_NULL,related_name='subs',null=True,blank=True,verbose_name='上级行政区划')
  
      class Meta:
          db_table = 'tb_areas'
          verbose_name = '行政区划'
          verbose_name_plural = '行政区划'
  
      def __str__(self):
          return self.name
  
  