1、python3 自带虚拟环境

创建python3的环境
python -m venv 【name】
激活
source /bin/activate
关闭
source /bin/deactivate

pip安装你想要的插件，和系统的没有关联

2、安装Django

pip install Django

查看是否安装好了

python
Python 3.6.8 (v3.6.8:3c6b436a57, Dec 24 2018, 02:04:31)
[GCC 4.2.1 Compatible Apple LLVM 6.0 (clang-600.0.57)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import django
>>> print(django.get_version())
>>> 2.2.5

3、创建项目

cd 到你要创建的目录下

django-admin startproject yoursitename

4、用于开发的简易服务器

cd 到对应项目目录

python manage.py runserver

更换端口

python manage.py runserver 8080


或

python manage.py runserver 0:8080

5、创建应用

cd 到对应项目目录

python manage.py startapp polls

polls目录结构


polls/
    __init__.py
    admin.py
    apps.py
    migrations/
        __init__.py
    models.py
    tests.py
    views.py

polls views.py 添加一下代码

from django.http import HttpResponse


def index(request):
    return HttpResponse("Hello, world. You're at the polls index.")

在polls目录下添加一个urls.py

from django.urls import path

from . import views

urlpatterns = [
    path('', views.index, name='index'),
]

在项目目录下添加一下

from django.contrib import admin
from django.urls import include, path

urlpatterns = [
    path('polls/', include('polls.urls')),
    path('admin/', admin.site.urls),
]

再次运行 python manage.py runserver

访问 http://localhost:8000/polls/ 或者 http://127.0.0.1:8000/polls/

至此项目就搞定了