ECSHOP模板 {insert name='history'}的用法

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在看ECSHOP代码的时候，在 history.lbi 中发现下面的用法。
{insert name='history'} ，是用来显示浏览历史的。
跟踪代码后发现，控制语句是在 includes/lib_insert.php 文件。
这个文件是ECSHOP 动态内容函数库。
里面定义各个函数的格式都是 function insert_***() ，每个函数都是一个功能控制模块，
在模板中可以使用 {insert name= ‘***' } 的方法进行调用。

/**
* 调用浏览历史
*
* @access public
* @return string
*/
function insert_history()
{
    $str = '';
    if (!empty($_COOKIE['ECS']['history']))
    {
        $where = db_create_in($_COOKIE['ECS']['history'], 'goods_id');
        $sql   = 'SELECT goods_id, goods_name, goods_thumb, shop_price FROM ' . $GLOBALS['ecs']->table('goods') .
                " WHERE $where AND is_on_sale = 1 AND is_alone_sale = 1 AND is_delete = 0";
        $query = $GLOBALS['db']->query($sql);
        $res = array();
        while ($row = $GLOBALS['db']->fetch_array($query))
        {
            $goods['goods_id'] = $row['goods_id'];
            $goods['goods_name'] = $row['goods_name'];
            $goods['short_name'] = $GLOBALS['_CFG']['goods_name_length'] > 0 ? sub_str($row['goods_name'], $GLOBALS['_CFG']['goods_name_length']) : $row['goods_name'];
            $goods['goods_thumb'] = get_image_path($row['goods_id'], $row['goods_thumb'], true);
            $goods['shop_price'] = price_format($row['shop_price']);
            $goods['url'] = build_uri('goods', array('gid'=>$row['goods_id']), $row['goods_name']);
            $str.='<ul class="clearfix"><li class="goodsimg"><a href="'.$goods['url'].'" target="_blank"><img src="'.$goods['goods_thumb'].'" alt="'.$goods['goods_name'].'" class="B_blue" /></a></li><li><a href="'.$goods['url'].'" target="_blank" title="'.$goods['goods_name'].'">'.$goods['short_name'].'</a><br />'.$GLOBALS['_LANG']['shop_price'].'<font class="f1">'.$goods['shop_price'].'</font><br /></li></ul>';
        }
        $str .= '<ul id="clear_history"><a onclick="clear_history()">' . $GLOBALS['_LANG']['clear_history'] . '</a></ul>';
    }
    return $str;
}

http://hi.baidu.com/hnsoar/item/ffd3f1512305f3938d12ed43