{% for topic in topics.object_list %}
  <p>{{ topic.title }}</p>
{% endfor %}

<p>
  {# topics.paginator.page_range 这个函数返回包含一个所有页码数的 range 对象 #}
  {# 即 range(1, topics.paginator.num_pages + 1) #}
  {% for page_number in topics.paginator.page_range %}
    {% ifequal page_number  topics.number %}
      {{ page_number }}
    {% else %}
      <a href="?page={{ page_number }}">{{ page_number }}</a>
    {% endifequal %}
  {% endfor %}
</p>


<p>
{% if topics.has_previous %}
  <a href="?page={{ topics.previous_page_number }}">Previous</a>
  {% endif %}
  {# topics.paginator.number_pages 返回总页数 #}
  Page {{ topics.number }} of {{ topics.paginator.num_pages }}.
{% if topics.has_next %}
  <a href="?page={{ topics.next_page_number }}">Next</a>
{% endif %}
</p>