帮助了解磁盘的物理组织，以及如何通过用户态的程序直接读写磁盘上的信息-Help understand the physical disk, as well as how the state through the user directly to read and write disk information
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001094s ]
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:0.085665s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001116s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002081s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001327s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003846s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001022s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003425s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015302s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001273s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 175229 [ RunTime:0.001289s ]
