Fatal error: Uncaught Exception: 执行语句错误 Array ( [0] => 42S22 [1] => 1054 [2] => Unknown column 'pu.use' in 'where clause' ) 最终执行的SQL: select count(*) as MyCount from (select product.*,brand.brief,brand.zh_brief from sl_product as product left join sl_brand as brand on product.cbid=brand.id left join sl_attribute as attribute on product.id=attribute.pid where pu.use=38 group by product.id order by product.delete asc) as tmp in /www/bb-china.net/samao/libs/sys/db.class.php:383 Stack trace: #0 /www/bb-china.net/samao/libs/sys/pagelist.class.php(150): DB::getCacheOne() #1 /www/bb-china.net/Apps/Home/controls/search.ctl.php(223): Pagelist->getCacheinfo() #2 /www/bb-china.net/Apps/Home/controls/search.ctl.php(11): SearchController->getMysql() #3 /www/bb-china.net/samao/samaophp.php(84): SearchController->indexAction() #4 /www/bb-china.net/index.php(48): App::Run() #5 {main} thrown in /www/bb-china.net/samao/libs/sys/db.class.php on line 383