亚洲中文偷拍av

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.那么老板的下一部网络小说是什么？如果书不是那么精彩的话，很难带动网络小说付费阅读的风潮。In this process, there will be some physical, behavioral and psychological changes. Although these changes are not necessarily, they are often signs that life is coming to an end.眼看便要丧命，却见徐海面容镇定，突然双膝跪地：我。Adapter mode of interface: When you don't want to implement all methods in an interface, you can create an abstract class Wrapper to implement all methods. When we write other classes, we can inherit the abstract class.板栗低声鼓励小丫头：别怕。不知道的人看了，还以为他们是一家子。