使用C++编写的CRC32校验算法，使用了STL库，windows API和汇编等几种方法实现，并能比较它们之间执行的时间。-The use of C++ Prepared CRC32 checksum algorithm, using the STL library, windows API, and the compilation of several methods, such as to achieve, and compare their execution time.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002028s ]
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:0.089515s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002375s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002112s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003829s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001882s ]
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SELECT aid,title,count(aid) as c FROM `jrk_downrecords` GROUP BY `aid` ORDER BY `c` DESC LIMIT 10 [ RunTime:0.014857s ]
SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002321s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 62861 [ RunTime:0.001167s ]
