A.models.Book.objects.all()B.models.Book.objects.get(id=3)C.models.Book..objects.filter(book_name=’python’)D.models.Book.objects.create(full_name=’lsw’)
A.LANGUAGE_CODE =’en-us’B.LANGUAGE_CODE =’zh-Hans’C.LANGUAGE_CODE =’en-GB’D.LANGUAGE_CODE =’ja-jp’
A.python manage.py makemigrationsB.python manage.py shellC.python manage.py startapp app02D.python manage.py migrate