用于实现相机的自动调焦，里面又自己定义的调焦函数，利用清晰度评价的方法去调焦。用于实际的工程运用。-Used to implement auto-focus camera, which has its own definition of focusing function, the use of evaluation methods to focusing clarity. Used in actual engineering applications.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001286s ]
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:0.085417s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001220s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001178s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003609s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001010s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003159s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014300s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001271s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 156686 [ RunTime:0.001363s ]
