对windows中drag-drop操作进行有巧妙的封装，使拖曳操作的编程变得简单易用，有类的使用例子代码。-Of windows in the drag-drop operations are clever packaging, so that programming drag operation become easy to use, there are examples of the use of category code.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001314s ]
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:0.086588s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001138s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.001920s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001143s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003566s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000980s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003156s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014665s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001278s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 203221 [ RunTime:0.001185s ]
