《操作系统概念》第六版中文版，珍藏， 内有1-9章译文，自己慢慢看吧。- sixth edition, chinese version, museum piece. It has been translated into chinese from 1 to 9 chapter, you could read it as long as you want.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001613s ]
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:0.130172s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001483s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001748s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001402s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.004436s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001040s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.004160s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.019380s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001403s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 308284 [ RunTime:0.017761s ]
