哈夫曼编码/译码 利用克鲁斯卡尔算法计算信息的哈夫曼编码，以便更好的利用通信信道。-Huffman encoding/decoding algorithm using Kruskal Huffman encoding of information in order to better use of communication channel.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001968s ]
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:0.104621s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002463s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001964s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002193s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003799s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002103s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003191s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014341s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002411s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 218230 [ RunTime:0.001139s ]
