延时采用指令延时的方法,通过改变系统时钟,改变延时的长短,用IOA口的低8位接的LED的闪烁显示出来-Delay the use of methods of instruction latency by changing the system clock, changing the length of delay, and low IOA I received 8 of the LED display flashes
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001467s ]
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:0.126733s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001358s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001386s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003645s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001162s ]
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SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014503s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001430s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 277325 [ RunTime:0.001380s ]
