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1. Creator: FactoryPizzaStore as defined above. It is an abstract class, which defines the method of creating objects. This method is an abstract method, and the specific process of creating objects is implemented by its subclasses. This abstract class usually relies on an abstract Product (another role in the factory method pattern) class. These abstract products are made by subclasses, and the creators do not care what kind of products are made.李敬文写完，看也不看，拿起纸递给黄瓜，笑问道：黄瓜，你瞧这样可成不？黄瓜接过去扫了一眼，含笑道：成。We can also use the javascript callback function as follows:9-8 Permissions: Write a class named Privileges that has only one attribute-Privileges, which stores the list of strings mentioned in Exercise 9-7. Move the method show_privileges () into this class. In the Admin class, a Privileges instance is used as its property. Create an Admin instance and use the method show_privileges () to display its permissions. ?她眉眼沉静，肤色光洁，上身是橙色暗花祥云纹蜀锦对襟褙子，下面月白裙子，小腹微微隆起。