Encapsulating Data 数据封装】的更多相关文章

Objective-C中类的封装本质上其他OO语言没什么区别,不过在概念和书写表达上差异还是比较大的, Property属性 这里的Property并不是简单的类成员变量,而是OC中特有的可以为编译器识别并自动生成取值函数的一个东西,可以理解为时加强的成员变量,他会自动生成getter.setter @interface XYZPerson : NSObject @property NSString *firstName; @property NSString *lastName; @end 比…
[Encapsulating Data] The synthesized methods follow specific naming conventions: The method used to access the value (the getter method) has the same name as the property. The getter method for a property called firstName will also be called firstNam…
Most Properties Are Backed by Instance Variables By default, a readwrite property will be backed by an instance variable, which will again be synthesized automatically by the compiler. An instance variable is a variable that exists and holds its valu…
Designated Initializer 不稳定的传送门 合成属性 Properties don’t always have to be backed by their own instance variables. As an example, the XYZPerson class might define a read-only property for a person’s full name: @property (readonly) NSString *fullName; Rat…
  Programming with Objective-C Encapsulating Data In addition to the messaging behavior covered in the previous chapter, an object also encapsulates data through its properties. 除了前一章讲述的消息方法(messaging behavior), 对象还能通过它的特性(properties)来封装数据. This chap…
该篇是我自己学习iOS开发时阅读文档时随手记下的翻译,有些地方不是很准确,但是意思还是对的,毕竟我英语也不是很好,很多句子无法做到准确的字词翻译,大家可以当做参考,有错误欢迎指出,以后我会尽力翻译的更好,大家一起努力共同进入,有兴趣的同学可以一起学习. 另附word文档下载  (文档中如果有一些错误希望大家谅解) About Objective-C  关于 Objective-C Objective-C is the primary programming language you use wh…
http://www.richardlord.net/blog/why-use-an-entity-framework Why use an entity system framework for game development?   Following my previous post on entity systems for game development I received a number of good questions from developers. I answered…
苹果官方文档:不稳定的传送门 读书笔记共有以下几篇,其他的知识点不重要或者已经熟悉不需记录 <Programming with Objective-C>第三章 Working with Objects <Programming with Objective-C>第四章 Encapsulating Data <Programming with Objective-C>第五章 Customizing Existing Classes <Programming with…
============================================================== URL1 nosql ==============================================================   The rise of NoSQL databases marks the end of the era of relational database dominance   But NoSQL databases wil…
多年来,Objective-C语言已经有了革命性的发展.虽然核心理念和实践保持不变,但语言中的部分内容经历了重大的变化和改进.现代化的Objective-C在类型安全.内存管理.性能.和其他方面都得到了增强.使你更容易编写正确的代码.在你现有和未来的代码中使用这些改进是很重要的,会使你的代码一致.可读.灵活.   Xcode提供了一个工具来帮助做这些结构性的变化.但在使用这个工具之前,你想了解工具为你的代码做了什么改变以及为什么.本文强调了一些最重要的和有用的现代化方式可以用在你的代码中.  …