它是关于vc++的多态性的资料，里面有多态性的内容的介绍，还有一些多态性的例子-It is on the vc++ the polymorphism data, there are polymorphisms of the contents of the presentations, there are some examples of polymorphism
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001305s ]
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:0.089442s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001150s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002008s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001138s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003637s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000970s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003342s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014384s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001207s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 65995 [ RunTime:0.001418s ]
