亚洲国产在线精品国

有了自己的军队，就有了在这乱世生存的资本。我和妹妹两个人住，谁想他突然出现并成为“爸爸”，这个男人到底怎么了...？Against Diluda (Comic 31)陈启的目的一直都是要建立一个面向全世界的文娱帝国，为了实现这个目的，不仅需要一部部好作品，还需要海量的资金。//Prevent blistering Cancel the following comment//e.stopPropagation (); });(to be continued)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.