基于dos的多任务系统的实现 通过对线程的创建和撤销,cpu的调度,同步机制,通信机制的实现.-based multi-tasking system of the threads through the creation and withdrawn, cpu scheduling, synchronization mechanisms, communication mechanisms to achieve.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001125s ]
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:0.073959s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001057s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000848s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003222s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000747s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003723s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014674s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001105s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 71877 [ RunTime:0.016302s ]
