DCT水印，简单实用，基于8*8分块的DCT域水印嵌入算法水印图像为64*64-DCT watermark, simple and practical, based on the 8* 8 sub-block DCT domain watermark image watermark embedding algorithm is 64* 64
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.004171s ]
SELECT `a`.`aid`,`a`.`title`,`a`.`create_time`,`m`.`username` FROM `jrk_downrecords` `a` INNER JOIN `jrk_member` `m` ON `a`.`uid`=`m`.`id` WHERE `a`.`status` = 1 GROUP BY `a`.`aid` ORDER BY `a`.`create_time` DESC LIMIT 10 [ RunTime:0.066021s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000984s ]
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SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000962s ]
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SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001193s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 231168 [ RunTime:0.130678s ]
