单片机课程实验 实 验 一：仿真软件keil及protues的使用 单片机I/O并行接口的使用 定时/计数器 实 验 四： 中断 实 验 五： 串行通信-Microcontroller Course Experiment 1: simulation software keil and protues use of microcontroller I/O parallel interface using the timer/counter Experiment 4: Interrupt test 5: Serial Communication
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001048s ]
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:0.085036s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.013276s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.007934s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001360s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003173s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000907s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003790s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.017033s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001319s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 159782 [ RunTime:0.020029s ]
