先在models中建幾張表結構：

from django.db import models
from django.contrib.contenttypes.models import ContentType
from django.contrib.contenttypes.fields import GenericForeignKey, GenericRelation

# Create your models here.
# class CourseType(models.Model):
#     type_name = models.CharField(verbose_name=‘課程類別‘,max_length=32)
 

# class Course(models.Model):
#     title = models.CharField(verbose_name=‘課程名稱‘,max_length=32)
#     course_info = models.CharField(verbose_name=‘課程描述‘,max_length=128)
#     student_num = models.IntegerField()
#     choice = ((1,‘初級‘),(2,‘中級‘),(3,‘高級‘))
#     student_level = models.IntegerField(verbose_name=‘級別‘,choices=choice)
 

#     course_price = models.IntegerField()
# class CourseDetail(models.Model):
#     course = models.OneToOneField(to=‘Course‘)
#     contents = models.CharField(verbose_name=‘所學內容‘,max_length=128)
#     time = models.CharField(verbose_name=‘時長‘,max_length=32)
#     choice = ((1, ‘初級‘), (2, ‘中級‘), (3, ‘高級‘))
 

#     student_level = models.IntegerField(verbose_name=‘級別‘, choices=choice)
#     student_num = models.IntegerField()
#     score = models.IntegerField()
#     recommended_courses = models.CharField(verbose_name=‘推薦課程‘,max_length=32)
# class Price(models.Model):
#     old_price = models.IntegerField(verbose_name=‘原價‘)
#     now_price = models.IntegerField(verbose_name=‘現價‘)
#     content_type = models.ForeignKey(to=ContentType)
#     object_id = models.PositiveIntegerField()
#     content_object = GenericForeignKey("content_type", "object_id")
# class CourseChapter(models.Model):
#     course_detail = models.ForeignKey(to=‘CourseDetail‘)
#
# class ClassHours(models.Model):
#     course_chapter = models.OneToOneField(to=‘CourseChapter‘)
#
# class questions(models.Model):
#     content_type = models.ForeignKey(to=ContentType)
#     object_id = models.PositiveIntegerField()
#     content_object = GenericForeignKey("content_type", "object_id")
# class teacher(models.Model):
#     name = models.CharField(verbose_name=‘姓名‘,max_length=32)
#     choice = ((1,‘男‘),(2,‘女‘))
#     sex = models.IntegerField(verbose_name=‘性別‘,choices=choice)
class Course(models.Model):
    """專題課程"""

    name = models.CharField(max_length=128, unique=True)
    course_img = models.CharField(max_length=255)
    brief = models.TextField(verbose_name="課程概述", max_length=2048)

    level_choices = ((0, ‘初級‘), (1, ‘中級‘), (2, ‘高級‘))
    level = models.SmallIntegerField(choices=level_choices, default=1)
    pub_date = models.DateField(verbose_name="發布日期", blank=True, null=True)
    period = models.PositiveIntegerField(verbose_name="建議學習周期(days)", default=7)
    order = models.IntegerField("課程順序", help_text="從上一個課程數字往後排")

    status_choices = ((0, ‘上線‘), (1, ‘下線‘), (2, ‘預上線‘))
    status = models.SmallIntegerField(choices=status_choices, default=0)
    # 用於GenericForeignKey反向查詢，不會生成表字段，切勿刪除
    price_policy = GenericRelation("PricePolicy")

    def __str__(self):
        return self.name

    class Meta:
        verbose_name_plural = "專題課"


class CourseDetail(models.Model):
    """課程詳情頁內容"""
    course = models.OneToOneField("Course", on_delete=models.CASCADE)
    hours = models.IntegerField("課時")
    # 課程的標語 口號
    course_slogan = models.CharField(max_length=125, blank=True, null=True)
    # video_brief_link = models.CharField(verbose_name=‘課程介紹‘, max_length=255, blank=True, null=True)
    # why_study = models.TextField(verbose_name="為什麽學習這門課程")
    # what_to_study_brief = models.TextField(verbose_name="我將學到哪些內容")
    # career_improvement = models.TextField(verbose_name="此項目如何有助於我的職業生涯")
    # prerequisite = models.TextField(verbose_name="課程先修要求", max_length=1024)
    # 推薦課程
    recommend_courses = models.ManyToManyField("Course", related_name="recommend_by", blank=True)
    teachers = models.ManyToManyField("Teacher", verbose_name="課程講師")

    def __str__(self):
        return "%s" % self.course

    class Meta:
        verbose_name_plural = "課程詳細"


class PricePolicy(models.Model):
    """價格與有課程效期表"""
    price = models.FloatField()


    # course = models.ForeignKey("Course")
    valid_period_choices = ((1, ‘1天‘), (3, ‘3天‘),
                            (7, ‘1周‘), (14, ‘2周‘),
                            (30, ‘1個月‘),
                            (60, ‘2個月‘),
                            (90, ‘3個月‘),
                            (180, ‘6個月‘), (210, ‘12個月‘),
                            (540, ‘18個月‘), (720, ‘24個月‘),
                            )
    valid_period = models.SmallIntegerField(choices=valid_period_choices)

    content_type = models.ForeignKey(ContentType, on_delete=models.CASCADE)  # 關聯course or degree_course
    object_id = models.PositiveIntegerField()
    content_object = GenericForeignKey(‘content_type‘, ‘object_id‘)


    class Meta:
        unique_together = ("content_type", ‘object_id‘, "valid_period")
        verbose_name_plural = "價格策略"


    def __str__(self):
        return "%s(%s)%s" % (self.content_object, self.get_valid_period_display(), self.price)


class Teacher(models.Model):
    """講師、導師表"""
    name = models.CharField(max_length=32)
    image = models.CharField(max_length=128)
    brief = models.TextField(max_length=1024)

    def __str__(self):
        return self.name

    class Meta:
        verbose_name_plural = "講師"

數據庫遷移後錄入數據：

前端發送axios請求：

課程列表接口，課程詳情接口（）