from goods.serializers import GoodsSerializer
class CourseDeepSerializer(CourseSer):
    goods_set = GoodsSerializer(many=True)
    chapters = ChaptersSer(many=True)

# -*- coding: utf-8 -*-
from  rest_framework import serializers
from goods.models import Goods


class GoodsSerializer(serializers.ModelSerializer):
    class Meta:
        model = Goods
        fields = ‘__all__‘  #所有字段