本程序用at16实现两根线(两个i/o口)+8片74164+一片ULN2003驱动24个LED数码管,通过串口写入要显示的数,可以在很多地方应用
-at16 the procedures used to achieve two lines (2 i/o) are 8 1 74164 24 ULN2003 drive LED digital control through serial write to show that the number can be applied in many places
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001512s ]
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:0.084286s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001057s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001008s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003103s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000827s ]
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SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.021303s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001645s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 225188 [ RunTime:0.019572s ]
