对32位微型计算机的系统结构，指令系统，存储器，中断与中断控制，I/O接口做了详尽透彻的论述。-Of 32 micro-computer system architecture, instruction set, memory, interrupt and interrupt control, I/O interface to do a thorough exposition.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001067s ]
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:0.058445s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001628s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002022s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001583s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.005671s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001614s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.004139s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014174s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001127s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 107191 [ RunTime:0.018257s ]
