操作系统课程设计中的一个进程调度模拟算法，包含了先来先服务，最先级数和时间轮转片三个算法。-Curriculum design in an operating system process scheduling simulation algorithm, contains first-come, first-served, and the first three series and time-rotation algorithm films.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001248s ]
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:0.059569s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001147s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001298s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000997s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003301s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000843s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003774s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014449s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001111s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 173469 [ RunTime:0.017122s ]
