DRF三级视图

from rest_framework.generics import ListCreateAPIView, RetrieveUpdateDestroyAPIView
class ListCreateAPI(ListCreateAPIView):
    """列表查询和新增功能"""
    queryset = BookInfo.objects.all().order_by('id')
    serializer_class = BookInfoSerializer
    pagination_class = PageNum


class RUDAPI(RetrieveUpdateDestroyAPIView):
    """修改，查询，删除"""
    queryset = BookInfo.objects.all()
    serializer_class = BookInfoSerializer
    lookup_field = 'id'
    lookup_url_kwarg = 'id'

path('book2/', ListCreateAPI.as_view()),
path('book2/<int:id>', RUDAPI.as_view()),