一个二叉树的三叉链表运用实例，求出叶子的结点并输出从根结点到该叶子结点的路径!-a binary tree using the trigeminal Chain example, the leaves are obtained and the output node from the Root of leaf nodes in the path!
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002094s ]
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:0.106664s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.003204s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002346s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002434s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003926s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002328s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003735s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015257s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002502s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 293801 [ RunTime:0.001290s ]
