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领域驱动设计系列(二):领域Model? - 更多技术 - 清泛网 - 专注C/C++及内核技术

...Domain Model, 同时我们又设计了ViewModel, 这样一般也没什么问题,职责也很清晰。但是有几个问题 我们要做很多的模型转换,转入转出。当然我们可以用AutoMapper来但是AutoMapper的性能实在难以恭维,大家可以在网上搜索AutoMapper per...
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Why do people say that Ruby is slow? [closed]

... Computer Language Benchmarks Game: Ruby 1.9 vs. Python3 within the same order of magnitude Ruby 1.9 vs. PHP within the same order of magnitude Ruby 1.9 vs. Java 6 server up to two orders of magnitude slower! Ruby 1.9 vs. C (gcc) up to two orders of magnitude slower! ... Why is Ruby considere...
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App Inventor 2开发计步器与定位器 - App Inventor 2 中文网 - 清泛IT论坛,有思想、有深度

...能。   2.主题:编写“健身宝”手机应用程序   3.问题:   (1)如何获取走路步数、距离?   (2)如何计算走路时间?   (3)如何获得当前位置?   (4)如何存储信息?   4.规划:   (1)利用pedome...
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新浪是如何分析处理32亿条实时日志的? - 更多技术 - 清泛网 - 专注C/C++及内核技术

...Checklist。 随着用户数据的不断增长,index管理也成了大问题,我们需要基于大量不同的用户配置定期的create、optimize、close、delete、snapshot不同的index,在某个服务器上手工配置crontab已是不可能,而且cron是单点。于是我们开发...
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PHP: How to generate a random, unique, alphanumeric string for use in a secret link?

... and it sends you an email with a link, and you have to click that link in order to verify your account 30 Answers ...
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What is the use of the @ symbol in PHP?

... Cool feature.. It makes the use of isset()'s unnecessary in order to avoid undefined offset errors. – W.M. Dec 17 '16 at 20:55 add a comment  ...
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PHP array delete by value (not key)

...ould need array_values() as well; the remaining keys are still in the same order though, so technically it's not "unsorted" – Ja͢ck Dec 26 '14 at 5:27 ...
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领域驱动设计系列(三):事件驱动上 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...nt.DeActive(); _emailService.SendEmail(); } } 但是,问题来了,如果后来我们要说,如果设备坏了,我们要更改可用库存的数量,这时候我们是不是要在这里修改代码而引入IInventoryService? 后来如果经理说设备坏了你们尽然...
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Error in exception handler. - Laravel

... Highly active question. Earn 10 reputation in order to answer this question. The reputation requirement helps protect this question from spam and non-answer activity. ...
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json_encode is returning NULL?

...ult = mysql_query('SELECT `id`, `name`, `description`, `icon` FROM `staff` ORDER BY `id` DESC LIMIT 20') or die(mysql_error()); $rows = array(); while($row = mysql_fetch_assoc($result)){ $rows[] = $row; } echo json_encode($rows); ?> When iterating over mysql_num_rows you should use < n...