django学习笔记（一）

进入到项目要建立的目录

zhangdeMacBook-Pro:~ zhang$ cd Documents/Django

创建项目（project）

zhangdeMacBook-Pro:Django zhang$ django-admin.py startproject learn

进入项目

zhangdeMacBook-Pro:Django zhang$  cd learn

创建app

zhangdeMacBook-Pro:learn zhang$  django-admin.py startapp blog

修改settings.py文件，添加app

zhangdeMacBook-Pro:learn zhang$  mvim learn/settings.py

INSTALLED_APPS = (
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'blog',   #new
)

修改urls.py文件

zhangdeMacBook-Pro:learn zhang$  mvim learn/urls.py

urlpatterns = [
    url(r'^admin/', include(admin.site.urls)),
    url(r'^blog/index/$','blog.views.index'),  #new
]

index是一个方法，存放于blog/views.py中。

编辑blog/views.py文件

zhangdeMacBook-Pro:learn zhang$ mvim blog/views.py

from django.shortcuts import render
from django.http import HttpResponse  #new

def index():           #new
    return HttpResponse('<h1>Hello World!</h1>')

试运行

zhangdeMacBook-Pro:learn zhang$ python3 manage.py runserver

用本机服务器。。

成功则显示：

WX20170829-142744@2x.png

打开浏览器

输入：

127.0.0.1:8000/blog/index

会显示出

Hello World!

至此，第一个hello world程序就成功了。