https://msdn.microsoft.com/en-us//library/bb383977.aspx private static void Dump(this ArraySegment<byte> segment) { string output = string.Join(",", segment.Select(x => x.ToString())); Console.WriteLine(output); } Extension methods enab…

https://msdn.microsoft.com/en-us/library/ms173156.aspx An interface contains definitions for a group of related functionalities that a class or a struct can implement. By using interfaces, you can, for example, include behavior from multiple sources…

The C# language is designed so that versioning between base and derived classes in different libraries can evolve发展 and maintain backward compatibility向后兼容. This means, for example, that the introduction of a new member in a base class with the same…

https://msdn.microsoft.com/en-us/library/ms173152.aspx Polymorphism is often referred to as the third pillar of object-oriented programming, after encapsulation and inheritance.  面向对象编程的三个特性:封装,继承,多态 Polymorphism is a Greek word that means "many-shap…

Io Programming Guide     Introduction Perspective Getting Started Downloading Installing Binaries Running Scripts Interactive Mode Syntax Expressions Messages Operators Assignment Numbers Strings Comments Objects Overview Prototypes Inheritance Metho…

原文发布时间为:2011-03-25 -- 来源于本人的百度文章 [由搬家工具导入] http://msdn.microsoft.com/en-us/library/bb383977.aspx 条件：静态类、静态方法、this 参数、第一个参数为this 参数，从第二个开始传值。。。 调用：第一个参数类型值.方法（第二个参数值开始传参。。。。）   Define a static class to contain the extension method. The class must be v…

Navigating a Data Hierarchy with Table Views 导航数据表视图层次 A common use of table views—and one to which they’re ideally suited—is to navigate hierarchies of data. A table view at a top level of the hierarchy lists categories of data at the most general l…

原文:View Programming Guide for iOS View and Window Architecture Views and windows present your application’s user interface and handle the interactions with that interface. UIKit and other system frameworks provide a number of views that you can use a…

原文:View Programming Guide for iOS 1 Introduction 先熟悉一下基本概念. Window Windows do not have any visible content themselves but provide a basic container for your application's views. Every application has at least one window that displays the application'…

Spark Programming Guide Link:http://spark.apache.org/docs/2.2.0/rdd-programming-guide.html 每个Spark Application包含一个driver程序(运行main方法)以及在集群中执行不同的并行操作. Spark的一级抽象是RDD(2.0之后推荐使用Dataset)划分在不同节点上的元素的集合支持并行处理和自动的故障恢复. RDD的创建:(1)a file in the Hadoop file sys…