条形码打印机EAN-13编码算法的C程序实现，编译环境keil-ARM，可直接用于项目开发-EAN-13 bar code printers coding procedures for the realization of the C compiler environment keil-ARM, can be used directly in the project development
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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:0.101549s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000932s ]
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SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000909s ]
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SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002240s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 312298 [ RunTime:0.012712s ]
