用广度优先搜索方法实现传教士食人魔过河问题，由于是用指针实现，所以结构比较复杂-Breadth-first search method used to achieve Ogre missionaries across the river, because it is a pointer to achieve, so the structure of more complex
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001154s ]
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:0.060603s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001054s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001216s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001134s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003215s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000868s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003878s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014435s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.000983s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 136763 [ RunTime:0.020484s ]
