class PublisherDetail(DetailView):model = Publisherdef get_context_data(self, **kwargs): context = super(PublisherDetail, self).get_context_data(**kwargs) context['book_list'] = Book.objects.all() #？？？？return context麻煩解釋一下#？那行是什么意思？context應(yīng)該是一個(gè)對(duì)象集吧？context[ ]怎么好像把它當(dāng)成字典來(lái)用啊？本來(lái)在沒(méi)有重寫(xiě)get_context_data函數(shù)的時(shí)候，我在模板里面可以這樣：{% for publisher in object_list %}<li>{{ publisher.name }}</li>{% endfor %}但是現(xiàn)在不行了吧，那要怎么使用context['book_list'] = Book.objects.all()這個(gè)數(shù)據(jù)呢？！