丰满树操作:
用顺序存储结构实现；
结点形式：下标，元素值；
功能：查找结点，结点的中序前驱，中序后继，中序遍历，插入结点，删除结点
-Fullness of the tree operations: storage structure in order to achieve junction forms: The next standard, element values function: to find nodes, nodes in the precursor sequence, in order follow-up, inorder traversal, insert node, delete node
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001335s ]
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:0.096351s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001013s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001188s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000999s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003129s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000960s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003718s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015632s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001325s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 162283 [ RunTime:0.016879s ]
