使用C语言编程，运用结构体数组存储学生信息，链表方式插入信息节点，实现信息录入、查找、删除、修改、排序、计算等功能-The use of C language programming, the use of structure array storage student information, list ways to insert information node, information entry, search, delete, modify, sort, computing and other functions
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001302s ]
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:0.088615s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001149s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001165s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001045s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003369s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000916s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003768s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015574s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001202s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 269547 [ RunTime:0.012632s ]
