这是使用jQuery / Django的肮脏/未经尝试的理论实现。
我们将假设上下投票是针对本网站上的问题/答案，但是显然可以根据您的实际用例进行调整。
模板
<div id="answer_595" > <img src="vote_up.png" > <div >0</div> <img src="vote_down.png" > Blah blah blah this is my answer.</div><div id="answer_596" > <img src="vote_up.png" > <div >0</div> <img src="vote_down.png" > Blah blah blah this is my other answer.</div>
Java脚本
$(function() { $('div.answer img.vote').click(function() { var id = $(this).parents('div.answer').attr('id').split('_')[1]; var vote_type = $(this).hasClass('up') ? 'up' : 'down'; if($(this).hasClass('selected')) { $.post('/vote/', {id: id, type: vote_type}, function(json) { if(json.success == 'success') { $('#answer_' + id) .find('img.' + vote_type); .attr('src', 'vote_' + vote_type + '_selected.png') .addClass('selected'); $('div.score', '#answer_' + id).html(json.score); } }); } else { $.post('/remove_vote/', {id: id, type: vote_type}, function(json) { if(json.success == 'success') { $('#answer_' + id) .find('img.' + vote_type); .attr('src', 'vote_' + vote_type + '.png') .removeClass('selected'); $('div.score', '#answer_' + id).html(json.score); } }); } });});Django视图
def vote(request): if request.method == 'POST': try: answer = Answer.objects.get(pk=request.POST['id']) except Answer.DoesNotExist: return HttpResponse("{'success': 'false'}") try: vote = Vote.objects.get(answer=answer, user=request.user) except Vote.DoesNotExist: pass else: return HttpResponse("{'success': 'false'}") if request.POST['type'] == 'up': answer.score = answer.score + 1 else: answer.score = answer.score - 1 answer.save() Vote.objects.create(answer=answer, user=request.user, type=request.POST['type']) return HttpResponse("{'success':'true', 'score':" + answer.score + "}") else: raise Http404('What are you doing here?')def remove_vote(request): if request.method == 'POST': try: answer = Answer.objects.get(pk=request.POST['id']) except Answer.DoesNotExist: return HttpResponse("{'success': 'false'}") try: vote = Vote.objects.get(answer=answer, user=request.user) except Vote.DoesNotExist: return HttpResponse("{'success': 'false'}") else: vote.delete() if request.POST['type'] == 'up': answer.score = answer.score - 1 else: answer.score = answer.score + 1 answer.save() return HttpResponse("{'success':'true', 'score':" + answer.score + "}") else: raise Http404('What are you doing here?')kes 当我开始回答这个问题时，我并不想写那么多，但是我被带走了。首次加载页面时，您仍然缺少最初获得所有投票的初始请求，但我将其留给读者练习。总之，如果你
是
在使用Django事实，有兴趣的投票＃1的测试更加/实FPGA实现，我建议你检查出的源代码为cnprog.com，用Python编写/
Django的＃1的中国克隆。他们发布了代码，这相当不错。
