链表基本操作，包括链表的初始化，创建，插入节点，删除节点，以及冒泡排序等，有完美的操作界面。-List of basic operations, including the initialization list, create, insert node, delete node, as well as the bubble sort, etc., there is a perfect interface.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.015083s ]
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:0.187164s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.000905s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001148s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001034s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003051s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000871s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003710s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014943s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001107s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 308309 [ RunTime:0.021340s ]
