经典的matlab编程代码,这是一部经典的matlab教材，对最优化问题阐述的比较精辟。-the code of matlab，-This is an optimization on the books, is English. This is a classic foreign materials, for optimization problems on the very brilliant
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001750s ]
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:0.093323s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001286s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001231s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003691s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001079s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003331s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014991s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001453s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 4358 [ RunTime:0.001435s ]
