使用Astar算法实现的八数码问题。C++编写，控制台应用程序，实现简单，代码轻便。-Astar algorithm using eight digital issues. C++ written in the console application, to achieve simple and lightweight code.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.011669s ]
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:0.144848s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.004947s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.017291s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.006135s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003332s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000930s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.004026s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015506s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001087s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 61694 [ RunTime:0.016931s ]
