电子秒表。利用VC＋＋实现简单的计时。可以了解VC中定时器的使用方式，以及对系统时间的获取方式。-electronic stopwatch. VC++ realization of a simple time. VC can understand the use of the timer, as well as the system time access methods.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001532s ]
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:0.118044s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.001725s ]
SELECT * FROM `jrk_tagrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 20 [ RunTime:0.002431s ]
SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001723s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.004445s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001267s ]
SELECT * FROM `jrk_searchrecords` WHERE `status` = 1 ORDER BY `num` DESC LIMIT 5 [ RunTime:0.003735s ]
SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.018034s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001853s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 59077 [ RunTime:0.001635s ]
