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http://www.tocker.ca/2014/04/21/installing-mysql-5-6-on-ubuntu-14-04-trusty-tahr.html https://www.digitalocean.com/community/tutorials/a-basic-mysql-t 阅读全文
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Refer to http://stackoverflow.com/questions/5211548/what-is-the-difference-between-at-extends-b-and-a-extends-b First of all, those are completely dif 阅读全文
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reference to blog.csdn.net/5iasp/article/details/37054171 一、场景假设 假设有博客系统中需要实现如下功能: 系统中用户发布文章,修改文章,删除文章时,需要一些相关的操作需要执行。 发布文章后,给好友发送邮件通知,给用户加积分,对文章做全文索引 阅读全文