北大ACM试题poj 第3058题源码，很好的代码，希望对搞ACM的同学有帮助
-Peking University ACM Chapter 3058 question Question poj source code, good code, and want to help students engage in ACM
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001363s ]
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:0.095087s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001458s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.003561s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001819s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.006396s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001596s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.005969s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.017753s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001402s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 184923 [ RunTime:0.001392s ]
