HDF E x p l o r e r 是读取HDF和HDF—EOS文件的实现程序，数据以树型结构被浏览，并且可以以种方式加载和显示数据。它可以通过提供的数字数生成图像，它支持 Windows NT／95。HDF Explorer具有数据访问速度快，能够读取所有HDF数据类型，支持标量和矢量图像生成，支持网格、矢量、标量浏览，数据浏览和数据输出便利．易于操作的特点。
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001144s ]
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:0.093149s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001494s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.003154s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001580s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.004508s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001189s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003959s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.017708s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001410s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 340028 [ RunTime:0.001117s ]
