读取数据出错：#42000You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'sele?t * from (SELECT * FROM `topic` where cat_uid = '22092117135688223373' and ' at line 1sele䁣t * from (SELECT * FROM `topic` where cat_uid = '22092117135688223373' and c_time < '2024-08-11 13:33:52'  and ifnull(c_time,'') <> '' and top_uid <> '72282711756239052804' order by c_time desc ) a limit 0,1 
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