請問這個效果，應該是用Cycle嗎？

我想它在首位的li>class設置active,而尾的li>class設置last.

<ul>
<li class='active'><a href='#'><span>Home</span></a></li>
<li><a href='#'><span>Products</span></a></li>
<li><a href='#'><span>Company</span></a></li>
<li class='last'><a href='#'><span>Contact</span></a></li>
</ul>
－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－－

<div id='cssmenu'>
{% for child in children %}
{% cycle 'active' 'last' as cssmenu silent %}
<li class="{{cssmenu}}">
<a href="{{ child.attr.redirect_url|default:child.get_absolute_url }}">{{ child.get_menu_title }}</a>
{% if child.children %}
<ul>
{% show_menu from_level to_level extra_inactive extra_active template "" "" child %}
</ul>
{% endif %}
</li>
{% endfor %}
</div>