在ecshop商品页详情页添加同类随机商品，能起到更好的展示效果，美观的客户体验，加让系统更方便搜索引擎抓取。   1，ecshop根目录下找到goods.php文件 找到ecshop代码  $smarty->assign(&＃39;properties&＃39;,          $properties[&＃39;pro&＃39;]);                              // 商品属性 在上面加代码 $smarty->assign(&＃39;category_related_random_goods&＃39;,       category_related_random_goods($goods[&＃39;cat_id&＃39;])); // 同分类随机商品   再在ecshop最底部添加上 随机同类商品的函数， 以下代码   /*同分类下随机推荐商品*/ function category_related_random_goods($category_id) {     $where = "g.is_on_sale = 1 AND g.is_alone_sale = 1 AND ".             "g.is_delete = 0 AND g.cat_id=$category_id ";     $sql = &＃39;SELECT g.goods_id, g.goods_name, g.goods_name_style, g.market_price, g.is_new, g.is_best, g.is_hot, g.shop_price AS org_price, &＃39; .                 "IFNULL(mp.user_price, g.shop_price * &＃39;$_SESSION[discount]&＃39;) AS shop_price, g.promote_price, g.goods_type, " .                 &＃39;g.promote_start_date, g.promote_end_date, g.goods_brief, g.goods_thumb , g.goods_img &＃39; .             &＃39;FROM &＃39; . $GLOBALS[&＃39;ecs&＃39;]->table(&＃39;goods&＃39;) . &＃39; AS g &＃39; .             &＃39;LEFT JOIN &＃39; . $GLOBALS[&＃39;ecs&＃39;]->table(&＃39;member_price&＃39;) . &＃39; AS mp &＃39; .                 "ON mp.goods_id = g.goods_id AND mp.user_rank = &＃39;$_SESSION[user_rank]&＃39; " .             "WHERE $where ORDER BY rand() limit 12";     $res = $GLOBALS[&＃39;db&＃39;]->query($sql);     $arr = array();//www.zuimoban.com     while ($row = $GLOBALS[&＃39;db&＃39;]->fetchRow($res))     {         $arr[$row[&＃39;goods_id&＃39;]][&＃39;goods_id&＃39;]     = $row[&＃39;goods_id&＃39;];         $arr[$row[&＃39;goods_id&＃39;]][&＃39;goods_name&＃39;]   = $row[&＃39;goods_name&＃39;];         $arr[$row[&＃39;goods_id&＃39;]][&＃39;short_name&＃39;]   = $GLOBALS[&＃39;_CFG&＃39;][&＃39;goods_name_length&＃39;] > 0 ?             sub_str($row[&＃39;goods_name&＃39;], $GLOBALS[&＃39;_CFG&＃39;][&＃39;goods_name_length&＃39;]) : $row[&＃39;goods_name&＃39;];         $arr[$row[&＃39;goods_id&＃39;]][&＃39;goods_thumb&＃39;]  = get_image_path($row[&＃39;goods_id&＃39;], $row[&＃39;goods_thumb&＃39;], true);         $arr[$row[&＃39;goods_id&＃39;]][&＃39;goods_img&＃39;]    = get_image_path($row[&＃39;goods_id&＃39;], $row[&＃39;goods_img&＃39;]);         $arr[$row[&＃39;goods_id&＃39;]][&＃39;market_price&＃39;] = price_format($row[&＃39;market_price&＃39;]);         $arr[$row[&＃39;goods_id&＃39;]][&＃39;shop_price&＃39;]   = price_format($row[&＃39;shop_price&＃39;]);         $arr[$row[&＃39;goods_id&＃39;]][&＃39;url&＃39;]          = build_uri(&＃39;goods&＃39;, array(&＃39;gid&＃39;=>$row[&＃39;goods_id&＃39;]), $row[&＃39;goods_name&＃39;]);         if ($row[&＃39;promote_price&＃39;] > 0)         {             $arr[$row[&＃39;goods_id&＃39;]][&＃39;promote_price&＃39;] = bargain_price($row[&＃39;promote_price&＃39;], $row[&＃39;promote_start_date&＃39;], $row[&＃39;promote_end_date&＃39;]);             $arr[$row[&＃39;goods_id&＃39;]][&＃39;formated_promote_price&＃39;] = price_format($arr[$row[&＃39;goods_id&＃39;]][&＃39;promote_price&＃39;]);         }         else         {             $arr[$row[&＃39;goods_id&＃39;]][&＃39;promote_price&＃39;] = 0;         }     }     return $arr; }   2，新建ecshop模板文件 category_related_random_goods.lbi 代码如下   <meta http-equiv="Content-Type" cOntent="text/html; charset=utf-8"> <!-- {if $category_related_random_goods} -->  <div class="box">         <h3>Related Products</h3>         <div>         <ul>         <!--{foreach from=$category_related_random_goods item=category_related_random_goods_data}-->                    <li class="li1" style="float:left; margin-bottom:20px;"><a href="{$category_related_random_goods_data.url}"><img src="{$category_related_random_goods_data.goods_thumb}" alt="{$category_related_random_goods_data.goods_name}"/></a></li>         <li class="li2" style="float:left; margin-bottom:20px;"><a href="{$category_related_random_goods_data.url}" title="{$category_related_random_goods_data.goods_name}">{$category_related_random_goods_data.short_name}</a><br />         <!-- {if $category_related_random_goods_data.promote_price neq 0} -->         {$lang.promote_price}<font class="f1">{$category_related_random_goods_data.formated_promote_price}</font>         <!-- {else} -->         {$lang.shop_price}<font class="f1">{$category_related_random_goods_data.shop_price}</font>         <!-- {/if} --></li>         <!--{/foreach}-->         </ul>         </div>  </div> <div class="blank5"></div> <!-- {/if} --> 样式可以自己定义 把category_related_random_goods.lbi文件复制到 /themes/你使用的模板/library/   文件夹里     3，ecshop找到  /themes/你使用的商城模板/goods.dwt  文件 加上   <!-- #BeginLibraryItem "/library/category_related_random_goods.lbi" --><!-- #EndLibraryItem -->   加在 <!-- #BeginLibraryItem "/library/goods_tags.lbi" --><!-- #EndLibraryItem -->   其他ecshop模块是同理的   PS: googs.php 里 ORDER BY rand() limit 12   这个代码 12 就是显示个数的

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