这些练习并没有多少用，但舍不得就扔了，作个记录吧。

from django.shortcuts import render
from django.http import Http404
from django.shortcuts import get_object_or_404
from django.http import HttpResponse
from .models import Question
from django.template import RequestContext, loader

# Create your views here.
def index(request):
    latest_question_list = Question.objects.order_by(‘pub_date‘)[:5]
    #template = loader.get_template(‘polls/index.html‘)
    #context = RequestContext(request, {‘latest_question_list‘: latest_question_list})
    #output = ‘,‘.join([p.question_text for p in latest_question_list])
    context = {‘latest_question_list‘: latest_question_list}
    return render(request, ‘polls/index.html‘, context)

def detail(request, question_id):
    question = get_object_or_404(Question, pk=question_id)
    ‘‘‘
    try:
        question = Question.objects.get(pk=question_id)
    except Question.DoesNotExist:
        raise Http404("Question does not exist")
    ‘‘‘
    return render(request, ‘polls/detail.html‘, {‘question‘: question})

def results(request, question_id):
    response = "You‘re looking at the results of question %s."
    return HttpResponse(response % question_id)

def vote(request, question_id):
    return HttpResponse("You‘re voting on question %s" % question_id)