LDPC码的编译码原理，详细完整，是了解LDPC码基础知识的很好的材料-LDPC code encoding and decoding principles, detailed and complete, is to understand the basics of LDPC codes of good material
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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:0.087978s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002232s ]
SELECT `id`,`username`,`userhead`,`usertime` FROM `jrk_member` WHERE `status` = 1 ORDER BY `usertime` DESC LIMIT 10 [ RunTime:0.003770s ]
SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002225s ]
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SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002545s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 165735 [ RunTime:0.001172s ]
