att extension

Five Swift Development Extensions (Extensions)//Extensions Add new functionality (functionality) to an existing class, struct, or enumeration type. This includes the ability to extend a type without having permission to get the original source code (that is, reverse modeling). Extensions are similar to classifications in Objective-c (categories). (unlike objective-c, however, Swift's extension has no name.) ) Swift The

extension methods enable you to "add" methods to an existing type without creating a new derived type, recompiling, or otherwise modifying the original type. an extension method is a special static method, but it can be called just like an instance method on an extended type. for client code written in C # and Visual Basic, there is no significant difference between calling

Recently in the study of how to embed Lua in Windows to complete the business module authoring some problems, first Lua as a scripting language, its flexibility and scalability is very high, otherwise cocos2d-x will not embed him to write business logic, But because of the relatively small domestic data, very few people go to the eight after the study to write an article to share their results, want to go deep understanding of the application of some things, it seems very weak, many of the LUA

Introduction When you use WebClient to download remote resources, you often encounter URLs like this: http://www.uushare.com/filedownload?user=iceseeid=2205188 http://www.guaishow.com/u/luanfujie/g9675/ We do not know whether this URL specifically represents a Web page, or a file of some kind. Some URLs, though with an extension, may be the wrong extension, like a GIF file marked with a JPG

Function The PHP program has been written for a long time, and naturally knows the functions he provides, and he offers a lot of features that really feel good, but sometimes it turns out that PHP lacks some functionality and always produces ideas for adding some custom functionality to PHP. Over time, finally today can not hold up, began to study how to add. Download a PHP source code package, here is the use of PHP 4.0.5 version, decompression will see the root directory of PHP will have rea

PHP extension development tutorial. PHP extension development getting started this article mainly introduces PHP extension development getting started, this article explains how to use C language to develop a PHP extension in a Linux system should have the most basic knowledge, getting started with PHP

In the previous article, we introduced non-mfc dll and the MFC rule DLL. Now we will analyze in detail the last type of DLL-MFC extension DLL. Introduction 6.1 The similarities between the MFC extension DLL and the MFC rule DLL are that the MFC class library can be used inside the two DLL types. The difference between the MFC extension DLL and the Applicati

In swift, extension is somewhat similar to the category of objective-c, but extension is more powerful and flexible than category, and it can extend not only the method of a certain type or struct, It can also be used in conjunction with protocol, to write more flexible and powerful code. 0. Overview-Extension Summary In swift, Swift can add new features for a sp

The realization of extension and management Three consecutive articles starting with this article I will show you three development extensions in BlogEngine.NET, Extension,widget and theme respectively. Programmers can develop their own extensions under certain criteria, and then integrate extensions like Plug-ins (Plug ' n play) with BlogEngine.NET to achieve personalized applications. This article will i

Analysis of C # extension method, In the process of project development using object-oriented language, many will use the "inheritance" feature, but not all scenarios are suitable for the "inheritance" feature, some basic principles of the design pattern are also mentioned. Problems arising from the use of inheritance-related features: the inheritance relationships of objects are defined at compilation, so the implementation of inheritance from the pa

-codesnippets. 36 5.3 Other questions... 37 5.3.1 pay attention to writing CLR attributes of extended attributes... 37 5.3.2 when to use property extension and when to use inheritance extension ?... 38 Preface In product line development, supporting product customization is an important part of product large-scale development. A very important part of customization is the customization of attribu

This article refers to As soon as we started installing PHP, we didn't know what extensions were needed, so we had to wait until we actually used them to find a way to install them. The easiest way to install PHP extensions is to sudo apt-get install php5-xxx But sometimes it is not what we want, the source does not have the expansion we need, this time we need to download the source code to build their own installation. In this article I will describe how to compile and install PHP extensions

Today we'll take a look at the new features of. NET 3.x: extension methods. Here's what I call the new features of the. NET 3.x, which are actually some of the new features of C # 3.0, which I call the. NET 3.x new features, given LINQ. May be so called will have some ambiguity, but I still feel so good, gossip not much to let us get to the point. I think the introduction of automation properties in c#3.0 has reduced our burden, and the

ReferenceNew features of the C # language in Orcas: Automatic properties, object initializers, and collection initializersNew Orcas language Features: extension methods 1. Automatic properties: public class Person {public string FirstName {get; set; }public string LastName {get; set; }public int Age {get; set; }} When the C # compiler in the Orcas version encounters an empty get/set attribute like the one above, it automatically generates a private m

Extension methods are defined as static methods, but they are called through the instance method syntax. Their first parameter specifies the type of the method to act on, and the parameter is prefixed with the this modifier. The extension method is in the range only when you use the using command to explicitly import the namespace to the source code. The following example shows an

class inheritance. If the object in the new type should carry details about the additional behavior, it may sometimes be less appropriate to use the inherited attribute, for example, when dealing with a type, a sealed class, or an interface. In the face of these requirements, we sometimes write static classes that contain some static methods. However, excessive static methods can result in additional unnecessary overhead. Overview of extension meth

First declare: We are going to build an extension or a module named Hello_module. This module provides a method: Hello_word.First, the construction of PHP environment1) generally use the source package to compile the installation, rather than binary package installation. Because there are some adventures in using PHP's binary bundle installation, these versions tend to ignore. Two important options for/configure, which are facilitated during developme

This article mainly introduces the PHP extension development tutorial. This article describes the basic knowledge of using C language to develop a PHP extension in a Linux system. For more information, see PHP extension development I am going to summarize my learning and insights on PHP extension development in this s

For some ready-made classes, if we want to add some new methods to improve functions, but do not want to change the existing encapsulation or use the derived classes, what should we do? Here we can use the extension method. Love at first sight-Expansion of first Knowledge Extension MethodThis allows you to "add" methods to an existing type without creating a new derived type, re-compiling, or modifyi

This article mainly introduces the PHP extension development tutorial. This article describes the basic knowledge of using C language to develop a PHP extension in a Linux system. For more information, see PHP extension development I am going to summarize my learning and insights on PHP extension development in this s