我在我的一个页面的上下文中有一个名为 comments 的列表，当我迭代它时，我想知道item的索引;我想知道这个for循环中 comment 的索引：

<!-- comment list section -->
                <div class="card shadow my-3 p-5">
                    <h3>Comments:</h3>
                <!-- checking if any comment exist on this post -->
                    {% if comments.count < 1 %}
                        No comments. write the first one!
                    {% else %}
                        <!-- iterating on comments and showing them -->
                        {% for comment in comments %}
                            <div id="comment-div">
                                <span id="Comment-name">by: {{ comment.name }}</span>
                                <span id="Comment-date">{{ comment.datetime_created|date:'M d Y' }}</span>
                                <p id="Comment-body">{{ comment.body }}</p>
                            </div>
                        {% endfor %}
                    {% endif %}
                </div>

浏览次数：

class PostDetailView(FormMixin, generic.DetailView):
    model = Post
    template_name = 'blog/post_detail.html'
    context_object_name = 'post'
    form_class = CreateComment

    def get_context_data(self, **kwargs):
        context = super(PostDetailView, self).get_context_data(**kwargs)  # get the default context data
        context['comments'] = Comment.objects.filter(accepted=True)  # add extra field to the context
        return context

型号：

class Comment(models.Model):

    post = models.ForeignKey(Post, on_delete=models.CASCADE, related_name='comments')
    email = models.EmailField(max_length=35)
    name = models.CharField(max_length=50)
    body = models.TextField()
    datetime_created = models.DateTimeField(auto_now_add=True)
    accepted = models.BooleanField(default=False)