本源码是用Java语言编写的一个计算器程序，可以实现加减乘除，正弦，余弦，记忆，清楚等的功能。-The source code is written in Java, a calculator program, you can realize addition and subtraction multiplication and division, sine, cosine, memory clear function.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002035s ]
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:0.088899s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001961s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002009s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002124s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003651s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002262s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003498s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.018684s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002435s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 46478 [ RunTime:0.001121s ]
