csharp写的一个学生选课系统，很实用，功能齐全，可以当成初学者学习的好东西-CSharp written by a student selection system, it is practical, functional and as beginners can learn good things
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002606s ]
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:0.087158s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002416s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002182s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003796s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002002s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003469s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014352s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002335s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 70139 [ RunTime:0.001154s ]
