用普通51单片机实现多任务
《RTX51中文版》，KEIL+RTX51实时操作系统的说明.rar-MCU 51 with ordinary multi-tasking RTX51 Chinese version , KEIL+ RTX51 description of real-time operating system. Rar
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.003095s ]
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:0.088409s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.007356s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002407s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002608s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003849s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002349s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003460s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015094s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002629s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 184002 [ RunTime:0.001497s ]
