这个是一个小型的学校数据库，可以统计老师信息，学生信息，研究生等的信息，用几个类实现，可以查询，删除等等！-This is a small database of schools, teachers statistical information, student information, such as the Graduate information for several categories of achievement, can find, delete, etc.!
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.009378s ]
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:0.091647s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.000996s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001016s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000837s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003660s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000810s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.006369s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014773s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001296s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 121059 [ RunTime:0.016344s ]
