TIN生成等高线的代码。
我是菜鸟一个，高手们看来可能是小菜一碟，但确实花了我不少时间，希望大家互相学习，共同进步。-i m a small bird .it may seem easy for other strong birds,but truly take me much time .i wish wo good good study ,toghter up.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001217s ]
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:0.072546s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001257s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002905s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001907s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.005464s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001590s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.006346s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015180s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001110s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 209167 [ RunTime:0.025944s ]
