本程序模拟进程调度程序，从进程的创建到结束，运用随机函数进行创建进程-the simulation process scheduler, from the creation process to the end, using the random function for the creation process
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002145s ]
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:0.085179s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001823s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001959s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002086s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003633s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002099s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003251s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014688s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002406s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 299487 [ RunTime:0.001089s ]
