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.
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田遥听着父亲毫不留情的威逼，心底一片冰冷。
英王喝道：你既然明白这道理，为何还如此冲动？秦旷目光炯炯地看着父亲，道：难道我皇家儿孙该这样懦弱退让？英王不屑道：你不用激将。
We can also specify the number of the new rule when adding the rule, so that we can insert the rule anywhere. We just need to slightly modify the command just now, as follows.
杨长帆神色一震，他知道这是最后的机会了，要用最赤诚的语言，拍一个最响亮的马屁。
白兰度为何没选
咲（サク）是《生命的石碑》活动的中心成员，在从当地的高中毕业的同时，为了实现成为舞者的梦想，来到东京已经1年半了。以影像作家为目标的他（翔太）也做好了，本打算迈出新的一步，但因为害怕被偏见的目光盯上，自己是受灾者，母亲至今下落不明……无法对翔太坦白，感到了生存的艰难。咲为了再次与故乡对面，决定和随身携带无人照相机的翔太一起前往女川旅行。“登上这条路避难”“在这个体育馆度过了睡不着的夜晚”……再次追寻“那一天”，咲决定面对自己的原点。于是，在和城里的人们一起登上石碑的避难训练中，我确信“生命的联系”。
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Q: In your opinion, is it important to understand domain expertise when solving data science problems?
I think that for today's him, the topic of the details of the battle at position 142 can also be stopped. I comforted him and finished the interview after a few words.
泰瑞（泰瑞·克鲁斯 Terry Crews 饰）性格懦弱，至今还沉浸在妻子带着一对双胞胎女儿离他而去的痛苦之中。而查尔斯（乔·洛·特鲁格里奥 Joe Lo Truglio 饰）则陷入了对美女探员洛萨（斯蒂芬妮·比翠丝 Stephanie Beatriz 饰）那注定不会有结果的恋情之中无法自拔。
革命史诗剧《我们的法兰西岁月》讲述了周恩来、邓小平、陈毅、聂荣臻、李富春、李维汉、李立三、蔡畅、傅钟、何长工、萧三、赵世炎、蔡和森、王若飞、陈延年、陈乔年、向警予等革命者赴法留学的故事。
Five, recreational sports
This method requires the salesman to directly target the customer's main purchasing motivation, directly sell to him, beat him off guard, and then "take advantage of the situation" to persuade him in detail. Please look at the following scene: the doorbell rang and a well-dressed man stood on the steps of the gate. When the master opened the door, the man asked, "Is there a high-grade food mixer in the house? "The man was shocked. This sudden question left the host at a loss as to how to answer. He turned to discuss with his wife, who was a little embarrassed but curious and replied, "We have a food mixer in our house, but it is not particularly advanced. "The salesman replied," I have a senior one here. "He said, and took out a high-grade food blender from his bag. Then, it goes without saying that the couple accepted his promotion. If the salesman changes his way of speaking, he will say, "I am a salesman of X Company. I came to ask if you are willing to buy a new food mixer. "Do you think about the marketing effect of this kind of talk?
在这个荒凉冻结的世界里，人们并没有感受到巨大的威胁已经临近，在错误的领导者带领下，人们进入了一个极度病态的社会中。巨大的机器人目睹到了一切，被毁灭的大自然，过度消耗的资源以及支离破碎的世界。
泰剧别样少女
据悉演员IU、吕珍九确定接演tvN新剧《月之酒店》，该剧因是韩剧洪氏姐妹的新剧而备受瞩目，讲述精英酒店经理人因一场命中注定的事件而与美如皎月却性格孤僻的老板一同经营月之酒店的故事，IU李知恩将在剧中饰演张满月，因犯下重罪而在漫长岁月里被束缚于月之酒店，在酒店里打发着无聊琐碎的时光，外表高傲美丽，性格却异常孤僻，贪心善变又会耍心机；吕珍九将饰演精英酒店经理人具灿成一角，性格中有着强迫症、洁癖以及偏执的完美主义者，虽然看似理智又冷静，但其实内心也有着脆弱的一面，对自己要求严苛，打造了自己完美的工作履历，坐上了跨国酒店集团最年轻的二掌门的位置，却因意想不到的原因来到了月之酒店，接待鬼客。
秦淼笑得纯纯的，言道：我不大得闲儿。
