若系统中有信息不完全或不确知的现象，则称为系统的灰色性。这种具有灰色性的系统，称为灰色系统。-If the system has incomplete information or not sure, then known as the system of the gray. This kind of gray system, known as the Gray system.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001151s ]
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:0.096443s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001110s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002044s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001186s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003564s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000979s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003139s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014081s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001263s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 3842 [ RunTime:0.001457s ]
