这是使用MAX3100和89S52单片机的红外放射原理图和用C语言写的程序代码。-This is the use of MAX3100 and MCU 89S52 Schematic infrared radiation and the use of C language to write the program code.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002209s ]
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:0.090018s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002754s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001964s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002180s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003651s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002011s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003600s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015085s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002434s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 187649 [ RunTime:0.001146s ]
