uC/OS II不支持同优先级的任务调度，但实际应用中，有些任务需要同优先级调度。-uC/OS II do not support same-priority task scheduling, but the practical application, some tasks need to work with priority scheduling.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002463s ]
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:0.099957s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002598s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001938s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002876s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.004049s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002783s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003325s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.018124s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002949s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 315611 [ RunTime:0.001284s ]
