hadoop学会了就可以去面试大数据分析吗

创建mysite目录
django-admin.py startproject mysite这个命令作用是:这将创建在当前目录创建一个mysite目录
前提是从命令行上cd到你想储存你代码的目录,然后生成各种子目录.

首先需要注意的是文件目录

这里面的文件大致作用:
books这个 文件夹存放的是新建数据库的各种信息
books/templates这个目录下装的是网页的布局,当然这个网页的布局就是show.html所提供
books/views.py定义函数,并且把show.html引入进去,文件内容如下:
from django.shortcuts import render,render_to_response

from django.template import loader

from books import models

# create your views here.

def show(request):
# publisher_list = [{'name':"gongye",'city':'beijing'}]
publisher_list = models.publisher.objects.all()
return render_to_response('show.html',{'publisher_list':publisher_list})
12345678910111213

books/models.py文件存放的是你所创建的数据库,代码如下:
#coding=utf-8
from __future__ import unicode_literals

from django.db import models

# create your models here.

class publisher(models.model):
name = models.charfield(max_length = 30)
address = models.charfield(max_length = 50)
city = models.charfield(max_length = 60)
state_province = models.charfield(max_length = 30)
country = models.charfield(max_length = 50)
website = models.urlfield()
# __unicode__这个函数用来返回某个值可以很好的用于查询和admin界面的显示
def __unicode__(self):
return self.name

class author(models.model):
first_name = models.charfield(max_length = 30)
last_name = models.charfield(max_length = 40)
email = models.emailfield(blank = true,verbose_name = 'e-mail')
def __unicode__(self):
return u'%s %s'%(self.first_name,self.last_name)

class book(models.model):
title = models.charfield(max_length = 100)
author = models.manytomanyfield(author)
publisher = models.foreignkey(publisher)
publication_date = models.datefield(blank = true,null = true)
def __unicode__(self):
return self.title
123456789101112131415161718192021222324252627282930313233

books下其他的文件就是在创建的过程中自己产生的.
website/templates文件里存放的是各种显示的静态网页布局,这么多html文件,只要你在访问测试的时候,端口号后面加上html的文件名字就行.比如,我要访问templates/base.html文件,输入网址:localhost:8000/base就可以.
website/settings.py文件是django的设置文档,里面的installed_apps添加多个应用,比如这里面我九添加了books应用,代码如下:
installed_apps = [
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'books',