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String concatenation vs. string substitution in Python
...catenation is (significantly) faster according to my machine. But stylistically, I'm willing to pay the price of substitution if performance is not critical. Well, and if I need formatting, there's no need to even ask the question... there's no option but to use interpolation/templating.
>>&g...
8 种提升 ASP.NET Web API 性能的方法 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...b API 是非常棒的技术。编写 Web API 十分容易，以致于很多开发者没有在应用程序结构设计上花时间来获得很好的执行性能。英文原文：8 ways to improve ASP.NET Web API performance
ASP.NET Web API 是非常棒的技术。编写 Web API 十分容易，以致...
How can you disable Git integration in Visual Studio 2013 permanently?
...isable the source control plugin going to:
Tools / Options
Check "Show all settings"
Source Control / Plug-in Selection
Set "Current source control plug-in" to "None"
Then, as Ade Miller says: Restart Visual Studio.
My Visual Studio was working really slow since the git plugging was enabled ...
ros 基本调试 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...ce
简介
如果你想为ros做贡献——不论是加入到源代码的开发中，还是帮助测试ros的关键部分——你都需要了解如何生成重要的调试日志。
对于开发者来说，如果想准确地找出和判断ros的运行状态，调试信息是非常重要的。从...
MQTT物联网协议完全实践指南 · App Inventor 2 中文网
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总结
本教程提供了完整的MQTT物联网应用开发方案，涵盖了从基础概念到高级应用的各个方面。通过实际项目案例，展示了如何使用App Inventor构建可靠的物联网应用，包括：
完整的MQTT连接管理：自动重连、错...
When to use dynamic vs. static libraries
...update is considered binary compatible with the original version.
Additionally dynamic libraries aren't necessarily loaded -- they're usually loaded when first called -- and can be shared among components that use the same library (multiple data loads, one code load).
Dynamic libraries were consid...
vs2010编译boost若干问题解决 - 开源 & Github - 清泛网 - 专注C/C++及内核技术
vs2010编译boost若干问题解决首先说下环境，win7，vs2010。先在http: www.boost.org users download 上下载boost安装包，我下的是1.52.0版。按照说明，直接运行bootstr...首先说下环境，win7，vs2010。
先在http://www.boost.org/users/download/上下载boost安...
angular.service vs angular.factory
... myInjectedFactory can be an object, a function reference, or any value at all. For example, if you wrote a service to create a constructor (as in the last example above), it would have to be instantiated like so:
var myShinyNewObject = new myInjectedService.myFunction()
which is arguably less desi...
Difference between __getattr__ vs __getattribute__
... the attribute wasn't found the usual ways. It's good for implementing a fallback for missing attributes, and is probably the one of two you want.
__getattribute__ is invoked before looking at the actual attributes on the object, and so can be tricky to implement correctly. You can end up in infi...
提升大数据分析思想，拥抱大数据未来 - 资讯 - 清泛网 - 专注C/C++及内核技术
...据的理解仍然维持在单一和特定用途的层面，那么在数据开发过程中容易出现缺乏灵活性、信息不全面的情况，在利用数据开发未来机遇方面，组织或将会陷于被动的境地。而成功的例子的则要数亚马逊和Salesforce了，这两家公...