本例主要实现了显示鼠标的位置的功能，可以随时在鼠标的位置上显示鼠标位置。
-The main achievement of this case showing the location of the functions of the mouse, you can position the mouse at any time to show the location of the mouse.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001983s ]
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:0.087291s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002572s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002778s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002242s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003669s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002084s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003196s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.017430s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002560s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 139086 [ RunTime:0.001182s ]
