Javascript 值通过表单提交，即使在值提交并显示之后，表单中也会显示提交的值

很抱歉标题太长，但实际情况如下： 我提交单词“hello”，然后显示hello。然后在某种形式上，它仍然会说“你好”。我不知道为什么会这样。这是django问题还是需要一些javascript代码来解决…？这是我的完整代码，我认为这是导致这个问题的原因。 在我看来.py

def post(request, slug):
        user = get_object_or_404(User,username__iexact=request.user)
        try:
            profile = MyProfile.objects.get(user_id=request.user.id)
            # if it's a OneToOne field, you can do:
            # profile = request.user.myprofile
        except MyProfile.DoesNotExist:
            profile = None
        post = get_object_or_404(Post, slug=slug)
        post.views += 1  # increment the number of views
        post.save()      # and save it
        path = request.get_full_path()
        comments = Comment.objects.filter(path=path)
        #comments = post.comment_set.all()
        comment_form = CommentForm(request.POST or None)
        if comment_form.is_valid():
            parent_id = request.POST.get('parent_id')
            parent_comment = None
            if parent_id is not None:
                try:
                    parent_comment = Comment.objects.get(id=parent_id)
                except:
                    parent_comment = None
            comment_text = comment_form.cleaned_data['comment']
            new_comment = Comment.objects.create_comment(
                user=MyProfile.objects.get(user=request.user),
                path=request.get_full_path(),
                text=comment_text,
                post = post,
                parent = parent_comment)

        for c in comments:
            c.get_children()


        context_dict = {
            'post' :post,
            'profile' :profile,
            'comments' : comments,
            'comment_form':comment_form

        }

        return render(request, 'main/post.html', context_dict)

在我的post.html中

<table class='table'>

{% for comment in comments %}

<tr><td>{{ comment.get_comment }} 
<br/><small>via {{ comment.user }} | {{ comment.timestamp|timesince }} ago </small>
        {% if not comment.is_child %}
        <ul>
        {% for child in comment.get_children %}
        <li>{{ child.get_comment }} 
        <small>via {{ child.user }}</small>


        </li>
        {% endfor %}
        </ul>
        <a href='#' class='reply_btn'>Reply</a>
        <div class='reply_comment'>
        <form method="POST" action=''>{% csrf_token %}
        <input type='hidden' name='parent_id' value='{{ comment.id }}' />
        {{ comment_form.as_p }}
        <input type='submit' class='btn btn-default' value='Add reply'/>
        </form>
        </div>
        {% endif %}


</td></tr>

{% endfor %}

</table>
</div>



<div class = "col-sm-3">

</div>

    {% include 'footer.html' %}


<script>
{% block jquery %}
$('.reply_btn').click(function(e){
  e.preventDefault();
  $(this).next(".reply_comment").fadeToggle();
  // $(".reply_comment").fadeToggle();
})
{% endblock %}
</script>

{% endblock %}

{注释%中的注释为%}
{{comment.get_comment}}

通过{{comment.user}}{{comment.timestamp}timesince}}ago
{%if not comment.is_child%}

{comment.get_children%}
{{child.get_comment}}
通过{{child.user}

{%endfor%}

{%csrf_令牌%}
{{comment_form.as_p}}
{%endif%}
{%endfor%}
{%include'footer.html%}
{%block jquery%}
$（'.reply_btn'）。单击（函数（e）{
e、 预防默认值（）；
$（this）.next（“.reply_comment”）.fadeToggle（）；
//$（“.reply_comment”）.fadeToggle（）；
})
{%endblock%}
{%endblock%}

---

请有人告诉我应该在哪里查看……在检查表单是否有效之前，谢谢您指定表单包含POST数据，以便在返回表单时它仍然包含此数据（以防需要显示错误）。最简单的修复方法是在完成有效逻辑后重新分配表单

   comment_form = CommentForm(request.POST or None)
    if comment_form.is_valid():
        .. Valid logic ..
        comment_form = CommentForm()