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A) Object-oriented paradigm. That is, people's legendary thoughts. Encapsulation, inheritance and polymorphism, in my opinion, are slightly higher than if, for, etc., which are also grammatical problems. The three principles to master in object-oriented programming are Plato principle, Liskov substitution principle and Parnas principle. These three principles are actually very simple. Any principle that you find difficult to fall in love at first sight and quickly identify with is not a good principle.生产队大食堂就要解散了,村民们都在发愁吃了这最后一顿,下一顿饭的着落.生产队长为了村民们的口粮,暗地里将大家缴的公粮每次都留下一部分,在最困难的时候将这些粮食分发给了村民们.有贵到隔壁村去看望老姑,正巧赶上桂枝的母亲病重,他不怕受传染将桂枝的母亲送往了卫生站……For example, HTML code is as follows:Memory = new Memory ();故事讲述讲述1897年时一位高官从西班牙来访，但他的女儿被绑架后令美西局势升温，在古巴的战争似乎已无可避免。Attackers can use ICMP/IGMP flood attacks and UDP flood attacks to directly launch distributed denial of service attacks that consume network broadband resources. However, this attack method is not only low, but also easy to find the source of the attack. Although attackers can hide by forging the source IP address, a better way is to use reflection attack technology.