可以精确计算地图的椭球面积，是根据国土局的文件用C#编程出来的，对搞测绘的人有帮助哦-Can be precisely calculated ellipsoid area of the map is based on the Land Bureau of the documents C# Programming out of people who engage in surveying and mapping has helped Oh
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.000995s ]
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:0.076555s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001510s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001330s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001752s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.004064s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001076s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.004071s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015784s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001183s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 73000 [ RunTime:0.017943s ]
