读取STM32芯片内部唯一的标识，用于加密等区别其他芯片的操作，有完整注释，测试通过-STM32 chip to read a unique identifier for the encryption and other differences other chip operation, with complete notes, test
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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:0.078876s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001025s ]
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SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001268s ]
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SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.187798s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 483764 [ RunTime:0.035949s ]
