离散系统灰色PID控制,对不确定部分建立灰色估计模型,根据参数的不确定部分进行一定的补偿-PID control of gray discrete-time systems, part of the establishment of the uncertainty estimation model gray, according to the parameters of uncertainty to a certain part of the compensation
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001062s ]
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:0.070977s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001004s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001050s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000983s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.002997s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000851s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003526s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014852s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001593s ]
UPDATE `jrk_articles` SET `hits` = 3 WHERE `id` = 4413 [ RunTime:0.016161s ]
