模型 models.py中 from django.db import models class User(models.Model): name = models.CharField() class OrderInfo(models.Model): order_id = models.CharField(max_length=128, primary_key=True) #默认的 在外键所在的表中保存的是对应主表的数据行的id值,该字段名称为模型字段名+ "_id" 这里就是 use
定义Model: from django.db import models class Moreinfo(models.Model): weight = models.FloatField() height = models.FloatField() class Detail(models.Model): sex = models.CharField(max_length=20) age = models.IntegerField() moreinfo = models.ForeignKey(M