第二步创建项目，创建mysql数据库

1.新建虚拟环境mkvirtualenv 环境名称
然后创建模版

2.新建一个apps文件夹 把创建的放到里面去，添加注册配置，

3.新建模板类,并支持模板路径

4、连接数据库
5、新建静态文件，并说明路径

7、创建模板类

（1）、user模板类代码
下面展示一些 内联代码片。

# -*-coding:utf-8-*-
from django.db import models
from django.contrib.auth.models import AbstractUser
from apps.base_model import BaseModel


class User(AbstractUser, BaseModel):
    """用户模型类"""

    class Meta:
        db_table = 'df_user'
        verbose_name = '用户'
        verbose_name_plural = verbose_name








class AddressManager(models.Manager):
    """地址模型管理器类"""

    # 1. 改变原有查询的结果集:all()
    # 2. 封装方法:用户操作模型类对应的数据表(增删查改)

    def get_default_address(self, user):
        # 获取用户的默认收货地址
        try:
            address = self.get(user=user, is_default=True)
        except self.model.DoesNotExist:
            address = None  # 不存在默认地址

        return address


class Address(BaseModel):
    """地址模型类"""
    user = models.ForeignKey('User', on_delete=models.CASCADE, verbose_name='所属用户')
    receiver = models.CharField(max_length=20, verbose_name='收件人')
    addr = models.CharField(max_length=256, verbose_name='收件地址')
    zip_code = models.CharField(max_length=6, null=True, verbose_name='邮政编码')
    phone = models.CharField(max_length=11, verbose_name='联系电话')
    is_default = models.BooleanField(default=False, verbose_name='是否默认')

    # 自定义一个模型管理器类
    objects = AddressManager()

    class Meta:
        db_table = 'df_address'
        verbose_name = '地址'
        verbose_name_plural = verbose_name

    def __str__(self):
        return self.user.username

用户认证系统通过

（2）、goods模板类

# -*-coding:utf-8-*-
from django.db import models
from apps.base_model import BaseModel
from tinymce.models import HTMLField


class GoodsType(BaseModel):
    """商品类型模型类"""
    name = models.CharField(max_length=20, verbose_name='种类名称')
    logo = models.CharField(max_length=20, verbose_name='标识')
    image = models.ImageField(upload_to='type', verbose_name='商品类型图片')

    class Meta:
        db_table = 'df_goods_type'
        verbose_name = '商品种类'
        verbose_name_plural = verbose_name

    def __str__(self):
        return self.name


class GoodsSKU(BaseModel):
    """商品SKU模型类"""
    status_choices = (
        (0, '下线'),
        (1, '上线')
    )
    type = models.ForeignKey('GoodsType', on_delete=models.CASCADE, verbose_name='商品种类')
    goods = models.ForeignKey('Goods', on_delete=models.CASCADE, verbose_name='商品SPU')
    name = models.CharField(max_length=20, verbose_name='商品名称')
    desc = models.CharField(max_length=256, verbose_name='商品简介')
    price = models.DecimalField(max_digits=10, decimal_places=2, verbose_name='价格')
    unite = models.CharField(max_length=20, verbose_name='商品单位')
    image = models.ImageField(upload_to='goods', verbose_name='商品图片')
    stock = models.IntegerField(default=1, verbose_name='商品库存')
    sales = models.IntegerField(default=0, verbose_name='商品销量')
    status = models.SmallIntegerField(default=1, choices=status_choices, verbose_name='状态')

    class Meta:
        db_table = 'df_goods_sku'
        verbose_name = '商品'
        verbose_name_plural = verbose_name

    def __str__(self):
        return self.name

    # def __repr__(self):
    #     return self.name


class Goods(BaseModel):
    """商品SPU模型类"""
    name = models.CharField(max_length=20, verbose_name='商品SPU名称')
    # 富文本类型：带有格式的文本
    detail = HTMLField(blank=True, verbose_name='商品详情')

    class Meta:
        db_table = 'df_goods'
        verbose_name = '商品SPU'
        verbose_name_plural = verbose_name

    def __str__(self):
        return self.name


class GoodsImage(BaseModel):
    """商品图片模型类"""
    sku = models.ForeignKey('GoodsSKU', on_delete=models.CASCADE, verbose_name='商品')
    image = models.ImageField(upload_to='goods', verbose_name='图片路径')

    class Meta:
        db_table = 'df_goods_image'
        verbose_name = '商品图片'
        verbose_name_plural = verbose_name


class IndexGoodsBanner(BaseModel):
    """首页轮播商品展示模型类"""
    sku = models.ForeignKey('GoodsSKU', on_delete=models.CASCADE, verbose_name='商品')
    image = models.ImageField(upload_to='banner', verbose_name='图片')
    index = models.SmallIntegerField(default=0, verbose_name='展示顺序')

    class Meta:
        db_table = 'df_index_banner'
        verbose_name = '首页轮播商品'
        verbose_name_plural = verbose_name

    def __str__(self):
        return self.sku.name


class IndexTypeGoodsBanner(BaseModel):
    """首页分类商品展示模型类"""
    DISPLAY_TYPE_CHOICES = (
        (0, '标题'),
        (1, '图片')
    )

    type = models.ForeignKey('GoodsType', on_delete=models.CASCADE, verbose_name='商品类型')
    sku = models.ForeignKey('GoodsSKU', on_delete=models.CASCADE, verbose_name='商品SKU')
    display_type = models.SmallIntegerField(default=1, choices=DISPLAY_TYPE_CHOICES, verbose_name='展示类型')
    index = models.SmallIntegerField(default=1, verbose_name='展示顺序')

    class Meta:
        db_table = 'df_index_type_goods'
        verbose_name = '主页分类展示商品'
        verbose_name_plural = verbose_name

    def __str__(self):
        return self.sku.name


class IndexPromotionBanner(BaseModel):
    """首页促销活动模型类"""
    name = models.CharField(max_length=20, verbose_name='活动名称')
    url = models.CharField(max_length=256, verbose_name='活动链接')
    image = models.ImageField(upload_to='banner', verbose_name='活动图片')
    index = models.SmallIntegerField(default=0, verbose_name='展示顺序')

    class Meta:
        db_table = 'df_index_promotion'
        verbose_name = '主页促销活动'
        verbose_name_plural = verbose_name

    def __str__(self):
        return self.name

添加富文本编辑器

（3）、order模型类

# -*-coding:utf-8-*-
from django.db import models
from apps.base_model import BaseModel


class OrderInfo(BaseModel):
    """订单模型类"""
    PAY_METHODS = {
        '1': "货到付款",
        '2': "微信支付",
        '3': "支付宝",
        '4': '银联支付'
    }

    PAY_METHODS_ENUM = {
        "CASH": 1,
        "ALIPAY": 2
    }

    ORDER_STATUS = {
        1: '待支付',
        2: '待发货',
        3: '待收货',
        4: '待评价',
        5: '已完成'
    }

    PAY_METHOD_CHOICES = (
        (1, '货到付款'),
        (2, '微信支付'),
        (3, '支付宝'),
        (4, '银联支付')
    )

    ORDER_STATUS_CHOICES = (
        (1, '待支付'),
        (2, '待发货'),
        (3, '待收货'),
        (4, '待评价'),
        (5, '已完成')
    )

    order_id = models.CharField(max_length=128, primary_key=True,verbose_name='订单id')
    user = models.ForeignKey('user.User', on_delete=models.CASCADE, verbose_name='用户')
    addr = models.ForeignKey('user.Address', on_delete=models.CASCADE, verbose_name='地址')
    pay_method = models.SmallIntegerField(choices=PAY_METHOD_CHOICES, default=3, verbose_name='支付方式')
    total_count = models.IntegerField(default=1, verbose_name='商品数量')
    total_price = models.DecimalField(max_digits=10, decimal_places=2, verbose_name='总金额')
    transit_price = models.DecimalField(max_digits=10, decimal_places=2, verbose_name='运费')
    order_status = models.SmallIntegerField(choices=ORDER_STATUS_CHOICES, default=1, verbose_name='订单状态')
    trade_no = models.CharField(max_length=128, default='', verbose_name='支付编号')

    class Meta:
        db_table = 'df_order_info'
        verbose_name = '订单'
        verbose_name_plural = verbose_name


class OrderGoods(BaseModel):
    """订单商品模型类"""
    order = models.ForeignKey('OrderInfo', on_delete=models.CASCADE, verbose_name='订单')
    sku = models.ForeignKey('goods.GoodsSKU', on_delete=models.CASCADE, verbose_name='商品SKU')
    count = models.IntegerField(default=1, verbose_name='商品数目')
    price = models.DecimalField(max_digits=10, decimal_places=2, verbose_name='价格')  # 总价格
    comment = models.CharField(max_length=256, default='', verbose_name='评论')

    class Meta:
        db_table = 'df_order_goods'
        verbose_name = '订单商品'
        verbose_name_plural = verbose_name

（4）、cart模型类

from django.db import models

# Create your models here.