文件对GIS的基本构成、运行环境、数据结构、基本功能、工程设计等进行了详细的描述，对GIS开发人员有很大的帮助。-On the GIS the basic structure, operating environment, data structures, basic functions and engineering design carried out a detailed description of the development of the GIS staff very helpful.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001906s ]
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:0.082763s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002864s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001856s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002518s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003548s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001874s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003150s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.015199s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002442s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 226832 [ RunTime:0.001460s ]
