通过VB.NET开发，主要实现文件的打开、新建、复制、删除操作，以一个实例的方式处理文件-The adoption of VB.NET development, the main document open, create, copy, delete operations, an example of the way to deal with file
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.008697s ]
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:0.098900s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.000917s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001144s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.000806s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003192s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000756s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.007226s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.022075s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.027757s ]
UPDATE `jrk_articles` SET `hits` = 2 WHERE `id` = 278923 [ RunTime:0.032526s ]
