文档介绍：页面关键字:{$keywords}            页面标题:{$page_title}       产品分类:父分类列表{foreachfrom=$categoriesitem=cat}                       父分类超链接[url==”{$}”>{$|escape:html}</a>                       相对应子分类{foreachfrom=$=child}                       子分类超链接[url==”{$}”>{$|escape:html}</a>       促销产品:{if$promotion_info}    检验是否存在促销产品,不存在就不显示相关信息       促销产品列表:{foreachfrom=$promotion_infoitem=itemkey=key}         订单查询:{ifempty($order_query)}         订单用户ID{if$}       订单数量:{$}       订单编号:{$}       发货查询:{if$invoice_list}         发货列表:{foreachfrom=$invoice_listitem=invoice}       订单号名称:{$}       订单号:{$}       发货单名称:{$}       发货单号:{$}       销售排行:{if$top_goods}         销售列表:{foreachname=top_goodsfrom=$top_goodsitem=goods}       产品短名称:{$}                下面来看一个例子:<!–{foreachname=top_goodsfrom=$top_goodsitem=goods}–>                                    <liclass=”top10-li-{$}”>[url==”{$}”title=”{$|escape:html}”>{$}</a></li>                                    <!–{/foreach}–>       精品推荐:{if$best_goods}        精品推荐列表:{foreachfrom=$best_goodsitem=goods}       市场价名称:{$}       市场价价格:{$}       促销价名称:{$}       促销价价