欧美激情性AAAAA片

如今这些孙子孙女的亲事，肯定得你们点头才能应准。Examples are as follows: (Let's give an example of sending emails and short messages)我们保持密切联系时所看到的是令人惊叹的人类戏剧。Grandma Lily quickly wiped away her tears and tried to calm down.One problem with the factory method pattern is that the creation of the class depends on the factory class, that is to say, if you want to expand the program, you must modify the factory class, which violates the closure principle. Therefore, from the design point of view, there are certain problems, how to solve them? We use the abstract factory mode to create multiple factory classes, so that once new functions need to be added, we can directly add new factory classes without modifying the previous code. Because the abstract factory is not very easy to understand, let's look at the diagram first, and then it is easier to understand with the code.218. X.X.30