腐蚀图像时常用的四种方法，可以参照学习。腐蚀是识别时常用到的技术之一。-Corrosion of four methods commonly used images, you can refer to learn. Corrosion is to identify frequently used technologies.
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.001798s ]
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:0.142235s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.001847s ]
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SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.001558s ]
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