出错信息： MySQL Query Error
SQL: SELECT * FROM dc_category A WHERE A.`show`=1 AND pid= AND A.lang=1 ORDER BY sequence desc , cid asc LIMIT 6
错误详情: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'AND A.lang=1 ORDER BY sequence desc , cid asc LIMIT 6' at line 1
错误代码:1064