简单使用美观的计算器，代码严谨简洁，易读，易懂，适合java初学者学习模仿！-Simple calculator using the aesthetic, code stringent concise, easy to read and understand for java beginners to learn to imitate!
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.004013s ]
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:0.214209s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.003059s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.004132s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002230s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003500s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000906s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.018219s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014941s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001109s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 94445 [ RunTime:0.015325s ]
