一款能够实现增删改查的小系统。很简单，很实用。适合初学者由简入深的学习Java。-Change can be achieved modifying a search of the small systems. Is very simple, very practical. Suitable for beginners to learn from simple deep into Java.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002067s ]
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:0.085772s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.004260s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002125s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002160s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003938s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002292s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003299s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014419s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002247s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 1837 [ RunTime:0.001334s ]
