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在anan上连载的漫画《我的姐姐》，是一部讲述了两人生活在一起年龄相仿的姐弟，关于恋爱、工作、人际关系、人生坦率交谈的对话剧。在电视剧中，30岁的姐姐·白井千春由黑木饰演，成为社会人第一年的弟弟·白井顺平由杉野饰演。音乐老师郝山水心怀革命理想，抱着一把提琴来到苏区参加红军，途中邂逅女匪火凤凰，憨厚耿直的他误以为火凤凰是地下党，救下了她，并用自己的善良感动了火凤凰，火凤凰将他护送到苏区。红军长征后，郝山水带领伤员看守遗留物资，遇到抢劫物资的火凤凰，郝山水这才知道对面的女孩竟然是赫赫有名的土匪头子，他誓死捍卫，寡不敌众，被捉到土匪窝中，火凤凰并没有杀他。郝山水通过对土匪的观察，发现他们大部分是被逼迫的农民，他用自己的信仰和真诚感染这伙人。在不断的较量和误会中，郝山水与火凤凰在极端残酷的环境下产生了一段生死爱情。最后，郝山水找到了留在南方的陈毅领导的游击队，帮助火凤凰铲除了顽匪，打破了地方武装和国军的围剿，顺利带领他们找到了新四军。The Liskov Substitution Principle (LSP) is one of the basic principles of object-oriented design. The Richter substitution principle says that wherever a base class can appear, subclasses can certainly appear. LSP is the cornerstone of inheritance reuse. Only when derivative classes can replace base classes and the functions of software units are not affected can base classes be truly reused, and derivative classes can also add new behaviors to base classes. The Richter substitution principle is a supplement to the "open-close" principle. The key step to realize the "open-close" principle is abstraction. The inheritance relationship between the base class and the subclass is the concrete realization of abstraction, so the Richter substitution principle is the specification of the concrete steps to realize abstraction. --From Baidu每一集的主要故事是一个公共卫生的突发事件，和少部分由此类事件引发的涉及到其他公共安全领域、治安领域的其他类型事件。The ack reflection attack can be carried out by using the ack response of the server side of the three-way handshake.2. Second handshake: The server receives SYN message segment. When the server receives the SYN message segment from the client, it needs to confirm the SYN message segment and set the Acknowledge Number to x+1 (Sequence Number+1); At the same time, I also need to send SYN request information, setting SYN position to 1 and Sequence Number to y; The server side puts all the above information into a message segment (i.e. SYN + ACK message segment) and sends it to the client side. At this time, the server enters the SYN_RECV state.-Skills that can easily get feedback are suitable for self-study. For example, when programming and debugging run away, you will know what goes wrong. Continue to take English as an example. If you find some words and roots that you are not familiar with, add them to your favorites and repeat them when you are free. If you find that you cannot understand grammatical difficult prepositions, you need to read and learn about them. Feedback is very important, which determines whether learning is mechanical repetition or virtuous circle.