《自己动手写操作系统》一书里面的源码，个人认为对学习操作系统的朋友有点帮助。-"to write his own operating system," a book which the source code, personal view on learning the system a bit to help a friend.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001471s ]
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:0.091702s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001256s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001873s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001218s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003600s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001039s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.004725s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014825s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001361s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 288493 [ RunTime:0.001224s ]
