用flash as2开发的sd物理引擎。适合做一些flash游戏的物理效果如碰撞，力场，弹性等。-Using flash as2 physics engine developed by sd. Suited to make some flash games physical effects such as collisions, force field, flexibility.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001400s ]
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:0.095738s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001242s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001238s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003564s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001078s ]
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SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.017637s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001415s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 189793 [ RunTime:0.001358s ]
