通过 django 实现商品简单的 增删改查

1、新建django项目

django-admin startproject projectname
2、 新建app

python manage.py startapp app01

3.商品的模型类

class Goods(models.Model):
    sku_name = models.CharField(max_length=200, verbose_name='商品名')
    price = models.DecimalField(max_digits=10, decimal_places=2, verbose_name='价格')
    selling_price = models.DecimalField(max_digits=10, decimal_places=2, verbose_name='售价')
    title = models.CharField(max_length=200, verbose_name='商品标题')
    instruction = models.TextField(verbose_name='商品描述')
    count = models.IntegerField(verbose_name='销售量', default=0)
    stock = models.IntegerField(verbose_name='库存量', default=0)
    lock_count = models.IntegerField(default=0, verbose_name='锁定数量')

    def __str__(self):
        return self.sku_name

    class M