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移动前端开发之viewport深入理解 - 更多技术 - 清泛网 - 专注C/C++及内核技术

...宽度都为多少,可以到http://viewportsizes.com去查看一下,里面收集了众多设备理想宽度。 再总结一下:ppk把移动设备上viewport分为layout viewport 、 visual viewport 和 ideal viewport 三类,其中ideal viewport是最适合移动设备...
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App Inventor 2 如何开发掌控版做互联网通讯App? - App Inventor 2 中文网...

...一个APP,然后和那个掌控版做互联网通讯,但是我看这个里面没有那个通讯协议这个是需要再安装插件还是怎么弄? 答复: [hide]使用MQTT拓展,下载地址:https://www.fun123.cn/reference/components/connectivity.html#Mqtt 参考IoT专题最...
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Check if list contains any of another list

... If both the list are too big and when we use lamda expression then it will take a long time to fetch . Better to use linq in this case to fetch parameters list: var items = (from x in parameters join y in myStrings on x.Source equals y s...
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How do I get the MAX row with a GROUP BY in LINQ query?

... This can be done using GroupBy and SelectMany in LINQ lamda expression var groupByMax = list.GroupBy(x=>x.item1).SelectMany(y=>y.Where(z=>z.item2 == y.Max(i=>i.item2))); share | ...
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快速理解 高频对冲套利自动交易(程式化交易) - 更多技术 - 清泛网 - 专注...

...”是买入还是卖出,是开仓,还是平仓。 当然,直接引用市场上交易数据,作为参考,整体上说,还是属于客观型交易,勉可以称为量化交易,但因此说是,程序化、自动化交易,似乎太勉了些,毕竟,指标客观发出...
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一文了解大数据领域创业机会与方向 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术

...也好,你需要给别人是一个简单动动手就能用工具,里面有功能按钮,而不是一堆代码,最起码应该满足目前Office工作人员使用。上手门槛较高意味着很大一部分用户被你挡在了门外。将大数据处理工具产品化势在必行。 ...
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【内核源码】linux UDP实现 - 操作系统(内核) - 清泛网 - 专注C/C++及内核技术

...ase_sock(sk); out: ip_rt_put(rt); //发送完成,减少路由缓存引用计数 if (free) kfree(ipc.opt); if (!err) return len; //发送成功,返回发送字节数 /* * ENOBUFS = no kernel mem, SOCK_NOSPACE = no sndbuf space. Reporting * ENOBUFS might not be good (it...
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STL 算法 - C/C++ - 清泛网 - 专注C/C++及内核技术

...,找到返回true.重载版本实用指定比较函数对象或函数指针来判断相等 函数原形 template<class FwdIt, class T> bool binary_search(FwdIt first, FwdIt last, const T& val); template<class FwdIt, class T, class Pred> bool binary_search(FwdIt first, FwdIt l...
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What is the @Html.DisplayFor syntax for?

... What is the lamda expression (m=&gt;m)? What is the first m represent? – Arcadian Oct 21 '13 at 14:26 1 ...
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How to include a child object's child object in Entity Framework 5

...a method come available? I'm stuck on a EF 4.0 Codebase..and cant' get the lamdas to work. Thanks for any input. – granadaCoder Sep 2 '14 at 19:39 5 ...