操作系统的内存管理模拟，用C++编写，不是可视化界面，但是十分方便实用~-operating system memory management simulation, C preparation, not visual interface, but very convenient and practical ~
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001265s ]
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:0.090040s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001223s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001921s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001215s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003675s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001142s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003314s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014470s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001292s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 65453 [ RunTime:0.001412s ]
