本代码是c++ socket编程实例。包含服务端和客户端代码，可以实现客户端发送消息，服务端接收消息并写入日志。server.cpp为服务端。client.cpp为客户端。首先，需要准备好C++环境。先编译运行server.cpp，显示：“server is start,waiting for client.”表示启动成功。再编译运行client.cpp,这时再看服务端，显示：“Hello, This is client whg”，表示收到客户端发来的消息。
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.024900s ]
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:0.137654s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.003583s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000974s ]
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SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001088s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 64266 [ RunTime:0.039541s ]
