使用填充脚本保存Django多个模型实例仅保存在最后一次迭代中创建的实例

from django.core.management.base import BaseCommand
from myapp.models import MyModel

class Command(BaseCommand):
    help = 'Save multiple model instances using a fixture script'

    def handle(self, *args, **options):
        instances = [
            {'name': 'Instance 1'},
            {'name': 'Instance 2'},
            {'name': 'Instance 3'},
        ]

        for instance_data in instances:
            instance = MyModel(**instance_data)
            instance.save()

        self.stdout.write(self.style.SUCCESS('Successfully saved instances'))

python manage.py <command_name>