路飞项目（一）——项目架构

1、文件管理器文件路径地址栏敲：%APPDATA% 回车，快速进入 C:\Users\电脑用户\AppData\Roaming 文件夹中
2、新建 pip 文件夹并在文件夹中新建 pip.ini 配置文件
3、新增 pip.ini 配置文件内容

[global]
index-url = http://pypi.douban.com/simple
[install]
use-mirrors =true
mirrors =http://pypi.douban.com/simple/
trusted-host =pypi.douban.com

1、使不同应用开发环境相互独立
2、环境升级不影响其他应用，也不会影响全局的python环境
3、防止出现包管理混乱及包版本冲突

# 建议使用pip3安装到python3环境下
pip3 install virtualenv
pip3 install virtualenvwrapper-win

控制面板 => 系统和安全 => 系统 => 高级系统设置 => 环境变量 => 系统变量 => 点击新建 => 填入变量名与值
变量名：WORKON_HOME  变量值：自定义存放虚拟环境的绝对路径
eg: WORKON_HOME: D:\Virtualenvs

同步配置信息：
去向Python3的安装目录 => Scripts文件夹 => virtualenvwrapper.bat => 双击

# 在终端工作的命令

# 1、创建虚拟环境到配置的WORKON_HOME路径下
# 选取默认Python环境创建虚拟环境：
    -- mkvirtualenv 虚拟环境名称
# 基于某Python环境创建虚拟环境：
    -- mkvirtualenv -p python2.7 虚拟环境名称
    -- mkvirtualenv -p python3.6 虚拟环境名称

# 2、查看已有的虚拟环境
    -- workon

# 3、使用某个虚拟环境
    -- workon 虚拟环境名称
    
# 4、进入|退出 该虚拟环境的Python环境
    -- python | exit()

# 5、为虚拟环境安装模块
    -- pip或pip3 install 模块名

# 6、退出当前虚拟环境
    -- deactivate

# 7、删除虚拟环境(删除当前虚拟环境要先退出)
    -- rmvirtualenv 虚拟环境名称

为luffy项目创建一个虚拟环境
>: mkvirtualenv luffy


workon luffy,进入虚拟环境，按照基础环境依赖安装模块
>: pip install django==2.0.7
>: pip install djangorestframework
>: pip install pymysql

前提：新建luffy文件夹
>: cd 建立的luffy文件夹
>: django-admin startproject luffyapi   #生成一个luffyapi   django项目

开发：用pycharm打开项目，并选择提前备好的虚拟环境

├── luffyapi
    ├── logs/                # 项目运行时/开发时日志目录 - 文件夹
    ├── manage.py            # 脚本文件
    ├── luffyapi/              # 项目主应用，开发时的代码保存 - 包
        ├── apps/              # 开发者的代码保存目录，以模块[子应用]为目录保存 - 包
        ├── libs/              # 第三方类库的保存目录[第三方组件、模块] - 包
        ├── settings/          # 配置目录 - 包
            ├── dev.py       # 项目开发时的本地配置
            └── prod.py      # 项目上线时的运行配置
        ├── urls.py            # 总路由
        └── utils/             # 多个模块[子应用]的公共函数类库[自己开发的组件]
    └── scripts/               # 保存项目运营时的脚本文件 - 文件夹

1.修改 wsgi.py 与 manage.py 两个文件：  在开发阶段使用dev，上线之后使用prod
os.environ.setdefault(‘DJANGO_SETTINGS_MODULE‘, ‘luffyapi.settings.dev‘)

2.将settings.py删除或改名，内容拷贝到settings/dev.py中

3.修改dev.py文件内容
LANGUAGE_CODE = ‘zh-hans‘     #设置中文
TIME_ZONE = ‘Asia/Shanghai‘
USE_TZ = False

4.修改启动配置：见插图

5.在任何一个__init__.py文件中测试默认配置文件是否是dev.py文件
from django.conf import settings
print(settings)

LOGGING = {
    ‘version‘: 1,
    ‘disable_existing_loggers‘: False,
    ‘formatters‘: {
        ‘verbose‘: {
            ‘format‘: ‘%(levelname)s %(asctime)s %(module)s %(lineno)d %(message)s‘
        },
        ‘simple‘: {
            ‘format‘: ‘%(levelname)s %(module)s %(lineno)d %(message)s‘
        },
    },
    ‘filters‘: {
        ‘require_debug_true‘: {
            ‘()‘: ‘django.utils.log.RequireDebugTrue‘,
        },
    },
    ‘handlers‘: {
        ‘console‘: {
            ‘level‘: ‘DEBUG‘,
            ‘filters‘: [‘require_debug_true‘],
            ‘class‘: ‘logging.StreamHandler‘,
            ‘formatter‘: ‘simple‘
        },
        ‘file‘: {
            # 实际开发建议使用WARNING
            ‘level‘: ‘INFO‘,
            ‘class‘: ‘logging.handlers.RotatingFileHandler‘,
            # 日志位置,日志文件名,日志保存目录必须手动创建，注：这里的文件路径要注意BASE_DIR代表的是小luffyapi
            ‘filename‘: os.path.join(os.path.dirname(BASE_DIR), "logs", "luffy.log"),
            # 日志文件的最大值,这里我们设置300M
            ‘maxBytes‘: 300 * 1024 * 1024,
            # 日志文件的数量,设置最大日志数量为10
            ‘backupCount‘: 10,
            # 日志格式:详细格式
            ‘formatter‘: ‘verbose‘,
            # 文件内容编码
            ‘encoding‘: ‘utf-8‘
        },
    },
    # 日志对象
    ‘loggers‘: {
        ‘django‘: {
            ‘handlers‘: [‘console‘, ‘file‘],
            ‘propagate‘: True, # 是否让日志信息继续冒泡给其他的日志处理系统
        },
    }
}

# 环境变量操作：小luffyapiBASE_DIR与apps文件夹都要添加到环境变量
import sys
sys.path.insert(0, BASE_DIR)
APPS_DIR = os.path.join(BASE_DIR, ‘apps‘)
sys.path.insert(1, APPS_DIR)

# 真实项目上线后，日志文件打印级别不能过低，因为一次日志记录就是一次文件io操作
LOGGING = {
    ‘version‘: 1,
    ‘disable_existing_loggers‘: False,
    ‘formatters‘: {
        ‘verbose‘: {
            ‘format‘: ‘%(levelname)s %(asctime)s %(module)s %(lineno)d %(message)s‘
        },
        ‘simple‘: {
            ‘format‘: ‘%(levelname)s %(module)s %(lineno)d %(message)s‘
        },
    },
    ‘filters‘: {
        ‘require_debug_true‘: {
            ‘()‘: ‘django.utils.log.RequireDebugTrue‘,
        },
    },
    ‘handlers‘: {
        ‘console‘: {
            # 实际开发建议使用WARNING
            ‘level‘: ‘DEBUG‘,
            ‘filters‘: [‘require_debug_true‘],
            ‘class‘: ‘logging.StreamHandler‘,
            ‘formatter‘: ‘simple‘
        },
        ‘file‘: {
            # 实际开发建议使用ERROR
            ‘level‘: ‘INFO‘,
            ‘class‘: ‘logging.handlers.RotatingFileHandler‘,
            # 日志位置,日志文件名,日志保存目录必须手动创建，注：这里的文件路径要注意BASE_DIR代表的是小luffyapi
            ‘filename‘: os.path.join(os.path.dirname(BASE_DIR), "logs", "luffy.log"),
            # 日志文件的最大值,这里我们设置300M
            ‘maxBytes‘: 300 * 1024 * 1024,
            # 日志文件的数量,设置最大日志数量为10
            ‘backupCount‘: 10,
            # 日志格式:详细格式
            ‘formatter‘: ‘verbose‘,
            # 文件内容编码
            ‘encoding‘: ‘utf-8‘
        },
    },
    # 日志对象
    ‘loggers‘: {
        ‘django‘: {
            ‘handlers‘: [‘console‘, ‘file‘],
            ‘propagate‘: True, # 是否让日志信息继续冒泡给其他的日志处理系统
        },
    }
}

import logging
logger = logging.getLogger(‘django‘)

from rest_framework.views import exception_handler as drf_exception_handler
from rest_framework.views import Response
from rest_framework import status
from utils.logging import logger
def exception_handler(exc, context):
    response = drf_exception_handler(exc, context)
    if response is None:
        logger.error(‘%s - %s - %s‘ % (context[‘view‘], context[‘request‘].method, exc))
        return Response({
            ‘detail‘: ‘服务器错误‘
        }, status=status.HTTP_500_INTERNAL_SERVER_ERROR, exception=True)
    return response

from rest_framework.response import Response

class APIResponse(Response):
    def __init__(self, data_status=0, data_msg=‘ok‘, results=None, http_status=None, headers=None, exception=False, **kwargs):
        data = {
            ‘status‘: data_status,
            ‘msg‘: data_msg,
        }
        if results is not None:
            data[‘results‘] = results
        data.update(kwargs)

        super().__init__(data=data, status=http_status, headers=headers, exception=exception)

1.管理员连接数据库
>: mysql -uroot -proot

2.创建数据库
>: create database luffy default charset=utf8;

3.查看用户
>: select user,host,password from mysql.user;

设置权限账号密码
# 授权账号命令：grant 权限(create, update) on 库.表 to ‘账号‘@‘host‘ identified by ‘密码‘

1.配置任意ip都可以连入数据库的账户
>: grant all privileges on luffy.* to ‘luffy‘@‘%‘ identified by ‘Luffy123?‘;

2.由于数据库版本的问题，可能本地还连接不上，就给本地用户单独配置
>: grant all privileges on luffy.* to ‘luffy‘@‘localhost‘ identified by ‘Luffy123?‘;

3.刷新一下权限
>: flush privileges;

只能操作luffy数据库的账户
账号：luffy
密码：Luffy123?

import pymysql
pymysql.install_as_MySQLdb()

DATABASES = {
    ‘default‘: {
        ‘ENGINE‘: ‘django.db.backends.mysql‘,
        ‘NAME‘: ‘luffy‘,
        ‘USER‘:‘root‘,
        ‘PASSWORD‘:‘root‘
    }
}

前提：在 luffy 虚拟环境下

1.终端从项目根目录进入apps目录
>: cd luffyapi & cd apps

2.创建user应用
>: python ../../manage.py startapp user

from django.db import models
from django.contrib.auth.models import AbstractUser
class User(AbstractUser):
    mobile = models.CharField(max_length=11, unique=True)
    icon = models.ImageField(upload_to=‘icon‘, default=‘icon/default.png‘)

    class Meta:
        db_table = ‘luffy_user‘  #设置表名
        verbose_name = ‘用户表‘
        verbose_name_plural = verbose_name

    def __str__(self):
        return self.username

INSTALLED_APPS = [
    # ...
    ‘user‘,   #应用名
]

# 自定义User表
AUTH_USER_MODEL = ‘user.User‘

MEDIA_URL = ‘/media/‘
MEDIA_ROOT = os.path.join(BASE_DIR, ‘media‘)

├── luffyapi
    └──    luffyapi/
           └──    media/      
            └──    icon 
                └── default.png

from django.contrib import admin
from django.urls import path, re_path, include
from django.views.static import serve
from django.conf import settings
urlpatterns = [
    path(‘admin/‘, admin.site.urls),

    path(‘user/‘, include(‘user.urls‘)),

    re_path(‘^media/(?P<path>.*)‘, serve, {‘document_root‘: settings.MEDIA_ROOT})
]

from django.urls import path, re_path
urlpatterns = [

]

1.傻瓜式安装node: 
官网下载：https://nodejs.org/zh-cn/   （需要下载就下载，下载过了就不用执行这句话了）

2.安装cnpm: 
>: npm install -g cnpm --registry=https://registry.npm.taobao.org

3.安装vue最新脚手架: 
>: cnpm install -g @vue/cli

注：如果2、3步报错，清除缓存后重新走2、3步
>: npm cache clean --force

前提：新建luffy文件夹   （在创建django项目的时候已经创建好了luffy文件夹）
>: cd 建立的luffy文件夹
>: vue create luffycity

├── luffycity
    ├── public/                      # 项目共有资源
        ├── favicon.ico                # 站点图标
        └── index.html                # 主页
    ├── src/                          # 项目主应用，开发时的代码保存
        ├── assets/                  # 前台静态资源总目录
            ├── css/                # 自定义css样式
                └── global.css        # 自定义全局样式
            ├── js/                    # 自定义js样式
                └── settings.js        # 自定义配置文件
            └── img/                # 前台图片资源
        ├── components/                # 小组件目录
        ├── views/                  # 页面组件目录
        ├── App.vue                    # 根路由
        ├── main.js                    # 入口脚本文件
        ├── router            
            └── index.js            # 路由脚本文件
        store                
            └── index.js            # 仓库脚本文件
    ├── vue.config.js                # 项目配置文件
    └── *.*                            # 其他配置文件

<template>
    <div id="app">
        <router-view/>
    </div>
</template>

import Vue from ‘vue‘
import VueRouter from ‘vue-router‘
import Home from ‘../views/Home.vue‘

Vue.use(VueRouter);

const routes = [
    {
        path: ‘/‘,
        name: ‘home‘,
        component: Home
    },
];

const router = new VueRouter({
    mode: ‘history‘,
    base: process.env.BASE_URL,
    routes
});

export default router

<template>
    <div class="home">
    </div>
</template>

<script>
    export default {
        name: ‘home‘,
        components: {
        },
    }
</script>

/* 声明全局样式和项目的初始化样式 */
body, h1, h2, h3, h4, p, table, tr, td, ul, li, a, form, input, select, option, textarea {
    margin: 0;
    padding: 0;
    font-size: 15px;
}

a {
    text-decoration: none;
    color: #333;
}

ul {
    list-style: none;
}

table {
    border-collapse: collapse; /* 合并边框 */
}

export default {
    base_url: ‘http://127.0.0.1:8000‘
}

import Vue from ‘vue‘
import App from ‘./App.vue‘
import router from ‘./router‘
import store from ‘./store‘

Vue.config.productionTip = false;

// 配置全局样式
import ‘@/assets/css/global.css‘

// 配置全局自定义设置
import settings from ‘@/assets/js/settings‘
Vue.prototype.$settings = settings;

// axios配置：cnpm install axios
import axios from ‘axios‘
Vue.prototype.$axios = axios;

// cookies配置：cnpm install vue-cookies
import cookies from ‘vue-cookies‘
Vue.prototype.$cookies = cookies;

// element-ui配置：cnpm install element-ui
import ElementUI from ‘element-ui‘;
import ‘element-ui/lib/theme-chalk/index.css‘;
Vue.use(ElementUI);

// bootstrap+jq配置：cnpm install jquery、cnpm install bootstrap@3
import ‘bootstrap‘
import ‘bootstrap/dist/css/bootstrap.min.css‘

new Vue({
  router,
  store,
  render: h => h(App)
}).$mount(‘#app‘);

cnpm install axios

import axios from ‘axios‘
Vue.prototype.$axios = axios;

cnpm install vue-cookies

import cookies from ‘vue-cookies‘
Vue.prototype.$cookies = cookies;

cnpm install element-ui

import ElementUI from ‘element-ui‘;
import ‘element-ui/lib/theme-chalk/index.css‘;
Vue.use(ElementUI);

cnpm install bootstrap@3
cnpm install jquery

import ‘bootstrap‘
import ‘bootstrap/dist/css/bootstrap.min.css‘

const webpack = require("webpack");

module.exports = {
    configureWebpack: {
        plugins: [
            new webpack.ProvidePlugin({
                $: "jquery",
                jQuery: "jquery",
                "window.jQuery": "jquery",
                "window.$": "jquery",
                Popper: ["popper.js", "default"]
            })
        ]
    }
};

<template>
    <div class="header-box">
        <div class="header">
            <div class="content">
                <div class="logo full-left">
                    <router-link to="/"><img @click="jump(‘/‘)" src="@/assets/img/logo.svg" alt=""></router-link>
                </div>
                <ul class="nav full-left">
                    <li><span @click="jump(‘/course‘)" :class="this_nav==‘/course‘?‘this‘:‘‘">免费课</span></li>
                    <li><span @click="jump(‘/light-course‘)" :class="this_nav==‘/light-course‘?‘this‘:‘‘">轻课</span></li>
                    <li><span>学位课</span></li>
                    <li><span>题库</span></li>
                    <li><span>老男孩教育</span></li>
                </ul>
                <div class="login-bar full-right">
                    <div class="shop-cart full-left">
                        <img src="@/assets/img/cart.svg" alt="">
                        <span><router-link to="/cart">购物车</router-link></span>
                    </div>
                    <div class="login-box full-left">
                        <span>登录</span>
                        &nbsp;|&nbsp;
                        <span>注册</span>
                    </div>
                </div>
            </div>
        </div>
    </div>
</template>

<script>
    export default {
        name: "Header",
        data() {
            return {
                this_nav: "",
            }
        },
        created() {
            this.this_nav = localStorage.this_nav;
        },
        methods: {
            jump(location) {
                localStorage.this_nav = location;
                // vue-router除了提供router-link标签跳转页面以外，还提供了js跳转的方式
                this.$router.push(location);
            }
        }
    }
</script>

<style scoped>
    .header-box {
        height: 80px;
    }

    .header {
        width: 100%;
        height: 80px;
        box-shadow: 0 0.5px 0.5px 0 #c9c9c9;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        margin: auto;
        z-index: 99;
        background: #fff;
    }

    .header .content {
        max-width: 1200px;
        width: 100%;
        margin: 0 auto;
    }

    .header .content .logo {
        height: 80px;
        line-height: 80px;
        margin-right: 50px;
        cursor: pointer;
    }

    .header .content .logo img {
        vertical-align: middle;
    }

    .header .nav li {
        float: left;
        height: 80px;
        line-height: 80px;
        margin-right: 30px;
        font-size: 16px;
        color: #4a4a4a;
        cursor: pointer;
    }

    .header .nav li span {
        padding-bottom: 16px;
        padding-left: 5px;
        padding-right: 5px;
    }

    .header .nav li span a {
        display: inline-block;
    }

    .header .nav li .this {
        color: #4a4a4a;
        border-bottom: 4px solid #ffc210;
    }

    .header .nav li:hover span {
        color: #000;
    }

    .header .login-bar {
        height: 80px;
    }

    .header .login-bar .shop-cart {
        margin-right: 20px;
        border-radius: 17px;
        background: #f7f7f7;
        cursor: pointer;
        font-size: 14px;
        height: 28px;
        width: 88px;
        margin-top: 30px;
        line-height: 32px;
        text-align: center;
    }

    .header .login-bar .shop-cart:hover {
        background: #f0f0f0;
    }

    .header .login-bar .shop-cart img {
        width: 15px;
        margin-right: 4px;
        margin-left: 6px;
    }

    .header .login-bar .shop-cart span {
        margin-right: 6px;
    }

    .header .login-bar .login-box {
        margin-top: 33px;
    }

    .header .login-bar .login-box span {
        color: #4a4a4a;
        cursor: pointer;
    }

    .header .login-bar .login-box span:hover {
        color: #000000;
    }

    .full-left {
        float: left !important;
    }

    .full-right {
        float: right !important;
    }

    .el-carousel__arrow {
        width: 120px;
        height: 120px;
    }

    .el-checkbox__input.is-checked .el-checkbox__inner,
    .el-checkbox__input.is-indeterminate .el-checkbox__inner {
        background: #ffc210;
        border-color: #ffc210;
        border: none;
    }

    .el-checkbox__inner:hover {
        border-color: #9b9b9b;
    }

    .el-checkbox__inner {
        width: 16px;
        height: 16px;
        border: 1px solid #9b9b9b;
        border-radius: 0;
    }

    .el-checkbox__inner::after {
        height: 9px;
        width: 5px;
    }
</style>

<template>
    <el-carousel height="520px" :interval="3000" arrow="always">
        <el-carousel-item>
            <img src="@/assets/img/banner1.png" alt="">
        </el-carousel-item>
        <el-carousel-item>
            <img src="@/assets/img/banner2.png" alt="">
        </el-carousel-item>
        <el-carousel-item>
            <img src="@/assets/img/banner3.png" alt="">
        </el-carousel-item>
    </el-carousel>
</template>
<script>
    export default {
        name: "Banner",
    }
</script>

<style scoped>
    .el-carousel__item h3 {
        color: #475669;
        font-size: 18px;
        opacity: 0.75;
        line-height: 300px;
        margin: 0;
    }

    .el-carousel__item:nth-child(2n) {
        background-color: #99a9bf;
    }

    .el-carousel__item:nth-child(2n+1) {
        background-color: #d3dce6;
    }
    .el-carousel__item img {
        text-align: center;
        height: 520px;
        margin: 0 auto;
        display: block;
    }
</style>

<template>
    <div class="footer">
        <ul>
            <li>关于我们</li>
            <li>联系我们</li>
            <li>商务合作</li>
            <li>帮助中心</li>
            <li>意见反馈</li>
            <li>新手指南</li>
        </ul>
        <p>Copyright © luffycity.com版权所有 | 京ICP备17072161号-1</p>
    </div>
</template>

<script>
    export default {
        name: "Footer"
    }
</script>

<style scoped>
    .footer {
        width: 100%;
        height: 128px;
        background: #25292e;
        color: #fff;
    }

    .footer ul {
        margin: 0 auto 16px;
        padding-top: 38px;
        width: 810px;
    }

    .footer ul li {
        float: left;
        width: 112px;
        margin: 0 10px;
        text-align: center;
        font-size: 14px;
    }

    .footer ul::after {
        content: "";
        display: block;
        clear: both;
    }

    .footer p {
        text-align: center;
        font-size: 12px;
    }
</style>

<template>
    <div class="home">
　　　　　#小组件页面导入
        <Header />
        <Banner />
        <Footer />
    </div>
</template>

<script>
　　#导入小组件
    import Header from ‘@/components/Header‘
    import Banner from ‘@/components/Banner‘
    import Footer from ‘@/components/Footer‘

    export default {
        name: ‘home‘,
        components: {
　　　　　　　#小组件注册
            Header,
            Banner,
            Footer
        },
    }
</script>

前提：在 luffy 虚拟环境下

1.终端从项目根目录进入apps目录
>: cd luffyapi & cd apps

2.创建app
>: python ../../manage.py startapp home

from django.urls import path, re_path, include
urlpatterns = [
    # ...
    path(‘user/‘, include(‘home.urls‘)),
    # ...
]

from django.urls import path, re_path
urlpatterns = [

]

from django.db import models

class BaseModel(models.Model):
    orders = models.IntegerField(verbose_name=‘显示顺序‘)
    is_show = models.BooleanField(verbose_name="是否上架", default=False)
    is_delete = models.BooleanField(verbose_name="逻辑删除", default=False)

    class Meta:
        abstract = True

from django.db import models
from utils.model import BaseModel

class Banner(BaseModel):
    image = models.ImageField(upload_to=‘banner‘, verbose_name=‘轮播图‘, null=True, blank=True)  #需要在media文件夹下创建banner文件夹,会把上传图片自动放入该文件夹中
    name = models.CharField(max_length=150, verbose_name=‘轮播图名称‘)
    note = models.CharField(max_length=150, verbose_name=‘备注信息‘)
    link = models.CharField(max_length=150, verbose_name=‘轮播图广告地址‘)

    class Meta:
        db_table = ‘luffy_banner‘
        verbose_name = ‘轮播图‘
        verbose_name_plural = verbose_name

    def __str__(self):
        return self.name

INSTALLED_APPS = [
    # ...
    ‘rest_framework‘,
    ‘home‘,
]

>: python manage.py makemigrations
>: python manage.py migrate

from rest_framework.serializers import ModelSerializer
from . import models

class BannerModelSerializer(ModelSerializer):
    class Meta:
        model = models.Banner
        fields = [‘name‘, ‘note‘, ‘image‘, ‘link‘]

from rest_framework.generics import ListAPIView
from utils.response import APIResponse
from . import models,serializers

class BannerListAPIView(ListAPIView):
    queryset = models.Banner.objects.filter(is_delete=False,is_show=True).order_by(‘-orders‘)
    serializer_class = serializers.BannerModelSerializer

from django.urls import path, re_path
from . import views
urlpatterns = [
    path(‘banners/‘, views.BannerListAPIView.as_view())
]

http://127.0.0.1:8000/home/banners/

>: pip install django-cors-headers

插件参考地址：https://github.com/ottoyiu/django-cors-headers/

# 注册app
INSTALLED_APPS = [
    ...
    ‘corsheaders‘
]

# 添加中间件
MIDDLEWARE = [
    ...
    ‘corsheaders.middleware.CorsMiddleware‘
]

# 允许跨域源
CORS_ORIGIN_ALLOW_ALL = True

<template>
    <el-carousel height="520px" :interval="3000" arrow="always">
　　　　　#渲染后台数据
        <el-carousel-item :v-for="banner in banner_list" :key="banner.name">
            <a :href="banner_link">
                <img :src="banner.img"  :title="banner.note">
            </a>
        </el-carousel-item>

    </el-carousel>
</template>
<script>
    export default {
        name: "Banner",
        data(){
            return {
                banner_list:[]
            }
        },
        //钩子函数，当页面运行结束时执行
        created(){
            //请求后台数据，类似于ajax
            this.$axios({
                url:this.$settings.base_url+‘/home/banners/‘,
                methods:‘get‘,
            }).then(response => {   //function ()  可以用response =>
                this.banner_list = response.data;  //返回给前台的数据
            }).catch(errors=>{
                window.console.log(errors)  //捕获异常
            })
        }
    }
</script>

<style scoped>
    .el-carousel__item h3 {
        color: #475669;
        font-size: 18px;
        opacity: 0.75;
        line-height: 300px;
        margin: 0;
    }

    .el-carousel__item:nth-child(2n) {
        background-color: #99a9bf;
    }

    .el-carousel__item:nth-child(2n+1) {
        background-color: #d3dce6;
    }
    .el-carousel__item img {
        text-align: center;
        height: 520px;
        margin: 0 auto;
        display: block;
    }
</style>

from django.contrib import admin

from . import models

admin.site.register(models.Banner)