有很多人肯定对设定子网掩码这个不熟悉，很头疼，那么我现在就告诉大家一个很容易算子网掩码的方法，帮助一下喜欢偷懒的人-sure a lot of people to set the subnet mask not familiar with a headache, then I will tell you a very easy way of counting subnet mask, a helping hand to people like the lazy
SHOW FULL COLUMNS FROM `jrk_downrecords` [ RunTime:0.002100s ]
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:0.089740s ]
SHOW FULL COLUMNS FROM `jrk_tagrecords` [ RunTime:0.002513s ]
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SHOW FULL COLUMNS FROM `jrk_member` [ RunTime:0.002372s ]
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SHOW FULL COLUMNS FROM `jrk_searchrecords` [ RunTime:0.002289s ]
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SHOW FULL COLUMNS FROM `jrk_articles` [ RunTime:0.002199s ]
UPDATE `jrk_articles` SET `hits` = 1 WHERE `id` = 120232 [ RunTime:0.001165s ]
