windows下利用多线程求PI的值，利用visual studio 2005编写；在linux下利用多线程求PI的值-under windows for multi-threaded use of the value of PI, using visual studio 2005 to prepare in linux using multi-threading for the value of PI
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001214s ]
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:0.093251s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001018s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001252s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001070s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003195s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001137s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.005386s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015725s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001092s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 191266 [ RunTime:0.019839s ]
