该程序实现了算术编码的编译码，并得到随机信源的输出码字和编码效率。-The program achieves the encoding and decoding of arithmetic coding, and gets the output code words and coding efficiency of the random sourse.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001265s ]
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:0.087992s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001244s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001897s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001291s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003631s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001068s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003301s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015138s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001498s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 173926 [ RunTime:0.001494s ]
