凯撒和维吉尼亚加密方法，两种算法都不是很复杂，基本原理也相似所以都写入一个文件中来表示。-Caesar and Virginia encryption method, two algorithms are not very complicated, so the basic principles are also similar to a document written to express.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001195s ]
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:0.086966s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001148s ]
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SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.000983s ]
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SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.001352s ]
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