给单片机初学者的40个实验,带有原理图,汇编和C语言双代码,单片机爱好者拿去参考吧.-Beginners to single-chip microcomputer 40 of the experiment, with a schematic diagram, and the C language compilation of dual-code, single-chip lovers refer to it instead.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.000928s ]
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:0.065837s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.000942s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001571s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.004799s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003307s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000874s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003475s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014776s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001176s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 176284 [ RunTime:0.015482s ]
