FAT 详解用于SD卡植入Fat16。
对于了解链表结构，寻址有利-Correspondence between drive number and physical drive .Note that Tiny-FatFs supports only single drive and always accesses drive number 0
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001243s ]
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:0.118659s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001855s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001844s ]
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:0.003345s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000996s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003654s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.024792s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.013710s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 162009 [ RunTime:0.024627s ]
