geotiff读写实验，对于遥感影像初学者了解GeoTIFF影像来说，非常不错！-read and write GeoTIFF experiments, remote sensing imagery for beginners to understand GeoTIFF image is very good!
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001345s ]
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:0.104758s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.003342s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.006809s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.003410s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003484s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002841s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.005526s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.028790s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.011478s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 112330 [ RunTime:0.029581s ]
