自己做的计算器，功能还算过得去吧，分为三大部分：1、输入数据类型转换；2、常规基本运算；3、进制转换。-own calculator, it functions passably divided into three parts : an input data type conversion; 2, the conventional basic arithmetic; 3, the base for the conversion.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.000987s ]
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:0.100766s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.000962s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001858s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001192s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003138s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000768s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.004046s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.017743s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001219s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 297649 [ RunTime:0.011913s ]
