java里面实现的接口的应用，对不同的类中，如果有相同的属性，就可以创建接口。这样就便于管理-java inside the interface to achieve the application of a different category, if the same attributes, we can create interfaces. This manageable
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001092s ]
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:0.063675s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001091s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001185s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000982s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.002965s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000827s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003591s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015230s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001107s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 52422 [ RunTime:0.015290s ]
