class Student(models.Model):

    sex_choices = (
        (0, "女"),
        (1, "男"),
        (2, "保密"),
    )
    name = models.CharField(max_length=32, unique=True, verbose_name="姓名")
    age = models.SmallIntegerField(verbose_name="年齡", default=18)  # 年齡
    sex = models.SmallIntegerField(choices=sex_choices)
    birthday = models.DateField()

    # 一對多的關係:在資料庫建立一個關聯欄位：clas_id
    clas = models.ForeignKey(to="Clas",related_name="student_list",on_delete=models.CASCADE)

    # 一對一的關係：建立關聯欄位,在資料庫中生成關聯欄位：stu_detail_id
    stu_detail = models.OneToOneField("StudentDetail",related_name="stu",on_delete=models.CASCADE)

    # 多對多的關係：建立第三張關係表
    courses = models.ManyToManyField("Course",related_name="students", db_table="db_student2course")

    class Meta:
        db_table = "db_student"


    def __str__(self):
        return self.name

<thead>
                            <tr>
                                <th>序號</th>
                                <th>姓名</th>
                                <th>年齡</th>
                                <th>性別</th>
                                <th>生日</th>
                                <th>班級</th>
                                <th>選修課程</th>
                            </tr>
                            </thead>
                            <tbody>
                            {
 
% for student in student_list %}
                                <tr>
                                    <td>{{ forloop.counter }}</td>
                                    <td>{{ student.name }}</td>
                                    <td>{{ student.age }}</td>
                                    <td>{{ student.get_sex_display }}</td>
                                    <td>{{ student.birthday|date:'
 
Y-m-d' }}</td>
                                    <td>{{ student.clas.name }}</td>
                                    <td>
                                        {% for course in student.courses.all %}
                                            <button>{{ course.title }}</button>
                                        {% endfor %}
                                    </td>
                                </tr>
                            {% endfor %}
                            </tbody>