嵌入式系统概述第4部分, 学习嵌入式系统应用的基础, 写的很好,不用买书了.因文件较大,所以分几次传完.-Embedded System Overview Part 4, learning embedded system applications based on the good writing, not the books. for a larger document, in several mass End.
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:0.106444s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.000897s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001118s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000977s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003222s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001189s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.005371s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.016844s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001206s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 129715 [ RunTime:0.021447s ]
