可以对文本字符进行ｈａｆｆｍａｎ编码，经过测试，该程序还是不错的。很完整的一个程序。-can to the text characters haffman coding, tested, the procedure is still pretty good. Complete a procedure.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001117s ]
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:0.070487s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001011s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001097s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000950s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.002925s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000894s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003550s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014210s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001127s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 239583 [ RunTime:0.012983s ]
