Linux网络编程。程序创建一个管道，并发起一个新的进程。父进程往管道里写数据，子进程往外读数据。-Linux Network Programming. Procedures to create a pipeline and has initiated a new process. Father of the process of writing data to the pipe, sub-process of reading data out.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001597s ]
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:0.106403s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001394s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002186s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001849s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.004876s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001652s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.006181s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.024717s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001928s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 211650 [ RunTime:0.001554s ]
