基于ARM7的开发板的外部存储器接口程序，文件里有程序的详细注释，对与在此基础之上的二次开发非常方便-based on the ARM7 development board external memory interface, document the procedures detailed notes, right and the basis of this second development is very convenient
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001137s ]
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:0.087503s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001069s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001046s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003790s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000920s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003875s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.017246s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001236s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 321118 [ RunTime:0.015835s ]
