对于可拓学中统一集的描述。统一集是模式识别的另外一种思路，很值得学习。-For a unified set of extenics in the description. Uniform set is another idea of pattern recognition, it is worth learning.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001003s ]
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:0.061655s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.000990s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001181s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001053s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003056s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000734s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003721s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014567s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001017s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 185144 [ RunTime:0.023656s ]
