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:0.001650s ]
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:0.074453s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001248s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001228s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001010s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003237s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000980s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.004882s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.016764s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001399s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 321239 [ RunTime:0.024366s ]
