数据结构c语言版，图的遍历，周游世界，无向图的遍历，包含14个国家。-Data structure c language version, graph traversal, travel around the world, undirected graph traversal, including 14 countries.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001423s ]
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:0.100785s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001361s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001905s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001275s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003749s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001164s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003352s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.016345s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001476s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 321239 [ RunTime:0.001386s ]
