如何从基础模型继承为django中的一对一字段创建多个实例？

from django.db import models

class BaseModel(models.Model):
    # 基础模型的字段
    field1 = models.CharField(max_length=100)
    field2 = models.IntegerField()

    class Meta:
        abstract = True

class Model1(BaseModel):
    # Model1的额外字段
    extra_field1 = models.CharField(max_length=100)
    extra_field2 = models.IntegerField()

class Model2(BaseModel):
    # Model2的额外字段
    extra_field3 = models.CharField(max_length=100)
    extra_field4 = models.IntegerField()

# 创建Model1实例
model1 = Model1.objects.create(field1='value1', field2=1, extra_field1='extra_value1', extra_field2=2)

# 创建Model2实例
model2 = Model2.objects.create(field1='value2', field2=2, extra_field3='extra_value3', extra_field4=4)

# 访问基础模型的字段
print(model1.field1)
print(model2.field2)

# 访问各自的额外字段
print(model1.extra_field1)
print(model2.extra_field3)