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:0.001013s ]
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:0.074090s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001063s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000977s ]
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SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000908s ]
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SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001125s ]
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