url配置：url(r'^home/(?P<org_id>\d+)/$', OrgHomeView.as_view(), name="org_home")

view:class OrgHomeView(View):    

                def get(self, request, org_id):  

                        course_org = CourseOrg.objects.get(id=int(org_id))    

                        all_courses = course_org.course_set.all()[:3]

                        all_teachers = course_org.teacher_set.all()[:1]    

                        return render(request, 'org-detail-homepage.html', {

                            'all_courses':all_courses,

                            'all_teachers': all_teachers

               }）

org-list：<a href="{% url 'org:org_home' course_org.id %}">

html里是有， 点击课程图片显示，点击课程文字显示。。实在不懂是什么原因了