A.python manage.py migratepolls zero B.python manage.py migrate--fake-initial C.python managemigrate polls--fake D.python manage.py makemigrationspolls
A.引用計(jì)數(shù) B.分代技術(shù) C.標(biāo)記-清除機(jī)制 D.Copying算法
A.list_display B.list_filter C.search_fields D.raw_id_fields