图书管理系统，C语言课程设计，双十字链表实现~~功能复杂强大-Library management system, C language curriculum design, to achieve ~ ~ pairs of cross-linked complex and powerful features
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.000992s ]
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:0.086728s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001025s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001183s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003199s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000861s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003901s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.016554s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001048s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 61500 [ RunTime:0.023282s ]
