C#计算器代码：实现简单计算器功能,是较好的C#入门程序，适合C#初学者-C# Calculator Code: implements a simple calculator function, is a better C# entry program, suitable for C# beginners
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001039s ]
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:0.077116s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001863s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002147s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001020s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003189s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000787s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003693s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015672s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001147s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 72286 [ RunTime:0.013686s ]
