二维图形编程，多边行性质的判定，凹凸性，点和多边形的包含性，相交性-two-dimensional graphics programming, the multilateral nature of the trip to determine, embossing, point and polygon inclusive, intersection
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001164s ]
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:0.093882s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.005488s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.003644s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.021605s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.007674s ]
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SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.021041s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001315s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 307561 [ RunTime:0.030613s ]
