设计模式的实践，语言以OBJC、SWift为主~
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2016-06-01
单例工厂模式：实现OC的单例工厂模式，为所有的类自动添加单例模式，并且提供清除单例的方法//Student继承与Person [Person singleton].name = @"Person :: hello world"; [Student singleton].name = @"Student :: hello world"; [Student singleton].grade = @"小一班"; [Person clearSingleton]; [Person singleton].name = @"New Person %d :: hello world"; [Student clearSingleton]; [Student singleton].name = @"New Student :: hello world";