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:0.001775s ]
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:0.090568s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.000996s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001132s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001019s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003123s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000904s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.005046s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014921s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001092s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 247496 [ RunTime:0.016866s ]
