server与client实现多线程的连接和交流,并且server提供下载文件的列表，client可以进行下载
-Perform multi-threading server and the client connections and communication, and the server a list of files available can be downloaded
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001858s ]
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:0.085299s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002388s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002030s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002224s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003643s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002037s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003272s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.016016s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002533s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 320271 [ RunTime:0.001145s ]
