能让用户免费在线观看

3.3. 2 Create Event 1 (Start Event Now)可以说是小股零星战斗。This is human nature. It is impossible for them to correctly distinguish whether physical problems are reversible diseases or irreversible signs of death. Therefore, in some elderly people, many funeral arrangements may be arranged in their later years, especially those who enjoy good medical resources.想想又道：怕是为了争一口气。他虽率军在外，却也是忧心忡忡。我琢磨着，这钱说到底都是从读书人那里赚的，拿出一部分回馈他们我才心安。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.