这个范例说明如何使用8051 的Port 1连接到四颗七段显示器，PORT 0的低4位分别控制这四颗共阳七段显示器，让四颗共阳七段显示器使用扫描的方式轮流-This example shows how to use the 8051 Port 1 connected to four seven-segment display, PORT 0, low 4, respectively to control the total of four seven-segment display yang, so that a total of four seven-segment display yang way of using the scan rotation
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001344s ]
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:0.078729s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001180s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001074s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003098s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000917s ]
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SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.021738s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001355s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 176566 [ RunTime:0.014750s ]
