荒野大镖客暴躁老太太

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.Trying to image how good an accessory this scarf would make during the automatic period.午饭后，他把《白发魔女传》的前三回打印了几份。每个人心里都有想要回去，却永远也回不去的那一天。跟随两个疏远的兄弟姐妹回到他们曾经熟悉和热爱的大牧场。詹妮·库珀，前急诊室医生和新任命的验尸官，调查可疑死亡。珍妮患有焦虑症，最近与一个十几岁的儿子丧偶，她是一个行动的女人，被对真相的强烈渴望所驱使。