基于Qt网络编程的FTP客户端，包含列出文件列表并下载。The FTP example demonstrates a simple FTP client that can be used to list the available files on an FTP server and download them.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002078s ]
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:0.087333s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002404s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001930s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002241s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003622s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002030s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003433s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015230s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002453s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 194161 [ RunTime:0.001165s ]
