Fcamp:การรับอินพุตจาก form

views.py

from django.shortcuts import render_to_response
from random import sample, randint

def index(request):
    notice = ''
    if request.method == 'POST':
        a = int(request.POST['a'])
	b = int(request.POST['b'])
	answer = int(request.POST['answer'])
	if a+b == answer:
            notice = 'Correct answer'
	else:
            notice = 'Sorry, please try again'
    else:
        a = randint(1,100)
	b = randint(1,100)

    return render_to_response("index.html",
			      { 'a': a,
				'b': b,
				'notice': notice })

index.html

{% extends "base.html" %}

{% block content %}
<h1>Answer this!</h1>
<p>
  <b>{{ notice }}</b><br/>
  <form method="post">
    {{ a }} + {{ b }} = 
    <input type="text" name="answer"/>
    <input type="hidden" name="a" value="{{ a }}"/>
    <input type="hidden" name="b" value="{{ b }}"/>
    <input type="submit" value="Go"/>
  </form>
</p>
{% endblock %}