...P 面向对象编程(OOP),类和对象; 继承和组合,self和super关键字,属性(Property); 类工厂方法(Class Factory Method); 单例模式(Singleton),委托模式(Delegation); 内存堆栈模型,内存管理(引用计数、ARC); 自省(Introspective), SEL...
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一个静态的泛型和非泛型类工厂方法?
A static factory method on a generic or a non-generic class?
工厂方法返回的类用于一个特定于服务的适配器。
The class returned by the factory method is an adapter to a particular cloud service.
它们不像实例方法那样常见,但您将会经常看到一些类方法,它们作为创建新的类实例的工厂方法;这免得您必须进行分配和初始化。
These are not as common as instance methods, but you will often see class methods that are factory methods for creating new instances of the class; this saves you from having to alloc and initialize.
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