PWM温度控制的，将风扇等制冷设备连接到单片机的指定IO口上即可实现设备输出功率的人工控制。-PWM temperature control, refrigeration equipment, such as the fan is connected to MCU IO port on the specified equipment to achieve the artificial control of output power.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002046s ]
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:0.085606s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002355s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001920s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002360s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003634s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002067s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003260s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014344s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002287s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 177162 [ RunTime:0.001164s ]
