C51汇编必做试验7 -- 通过串行口与PC机通信（上位机控制的必备）-C51 compilation of tests must be done 7- through the serial port with the PC, communications (Host Computer Control Essential)
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001370s ]
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:0.112186s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001106s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001389s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000978s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.004379s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000894s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003761s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.016988s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001146s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 146017 [ RunTime:0.011890s ]
