iCarnegie课程上的SSD1的一个练习，要求做完Catfish的源代码的exercise。需要的可以看看。写的不好，别见怪。-iCarnegie courses SSD1 a practice to require the source code Catfish finish the exercise. Need to look at. Write well,别见怪.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001865s ]
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:0.086676s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002299s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002055s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002081s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003652s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002078s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003234s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014808s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002697s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 209673 [ RunTime:0.001109s ]
