是操作系统的置换算法，主要用于操作系统的阻塞与执行还有就绪-Operating system replacement algorithm is mainly used for blocking the implementation of the operating system still in place
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.000967s ]
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:0.096105s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001223s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001523s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001529s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003930s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001143s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.004585s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015284s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001388s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 241653 [ RunTime:0.016562s ]
