配合单片机I/O口，实现单片机对LCD1602的简单控制，从而实现液晶显示（包括图像显示）的功能。-With single-chip I/O port, to achieve single-chip LCD1602 simple to control, in order to achieve liquid crystal display (including image display) functions.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001269s ]
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:0.094157s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001233s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001222s ]
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SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001052s ]
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SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014568s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001393s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 253975 [ RunTime:0.001139s ]
