数据结构中的一个试验程序，实现简单的校园导游图功能，提供查找最短路径功能。-data structure of a test procedures, a simple guide campus map function, providing the shortest path search function.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.000984s ]
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:0.062074s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.000952s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001126s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000932s ]
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:0.000788s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003653s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014825s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001096s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 301587 [ RunTime:0.017703s ]
