这个程序主要是实现一个带孔的多边形的填充，采用了边表，新边表等概念，适合新手看一下。-this procedure is a major hole in a polygon filling, using a side table, side table new concepts suitable for newcomers to see.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001076s ]
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:0.076791s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.000861s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001063s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000958s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003207s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000755s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003818s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014787s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001127s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 190829 [ RunTime:0.017332s ]
