一个DOS操作系统的源代码，程序学习者可以从中间学习到许多操作系统的开发经验。使用VC进行开发-Source code for DOS, developed with VC. Programer can learn many developed experience in operating system from the code.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001871s ]
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:0.093894s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001175s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001985s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001165s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003671s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001034s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003268s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015530s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001378s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 303341 [ RunTime:0.001321s ]
