用UDP协议实现网络通信，发送方向接收方发送字符串消息“This is a test.”,接收方接收并显示字符串，如果几首成功，则发送方显示“OK”。-Using UDP protocol network communication, send the direction of the receiving party to send a string message
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002591s ]
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:0.092411s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002945s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002015s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002195s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003710s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001900s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003686s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015013s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002734s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 247496 [ RunTime:0.001395s ]
