一、关系模型的序列化-多查1

1.1、模型准备

from django.db import models# Create your models here.
class Classes(models.Model):name = models.CharField(max_length=20, verbose_name='班级')class Student(models.Model):SEX_CHOICES = ((1,'男')), (2, '女')name = models.CharField(max_length=20, verbose_name='姓名')age = models.IntegerField(null=True, blank=True, verbose_name='年龄')sex = models.IntegerField(choices=SEX_CHOICES, default=1, verbose_name='性别')classes = models.ForeignKey(Classes, on_delete=models.SET_NULL,null=True,verbose_name='班级')