Monte Carlo方法课件，清华大学用的。
这是一份很好的Monte Carlo方法教程，详细的介绍了蒙特卡洛算法的知识和应用。-Monte Carlo method courseware, Tsinghua University. This is a very good tutorial Monte Carlo method.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.000937s ]
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:0.058940s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.000947s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001077s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000909s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003084s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000784s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003871s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015463s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001398s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 250057 [ RunTime:0.015220s ]
