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TCP works in the Transport layer, IP in the Network layer, and ARP in the DataLink layer; The data on the second layer is called Frame, the data on the third layer is called Packet, and the data on the fourth layer is called Segment. At the same time, we need to simply know that when data is sent from the application layer, header information will be added to each layer, encapsulated, and then sent to the data receiving end. This basic process you need to know, that is, every data will go through the process of data encapsulation and unencapsulation.The general interview process comes down at 4 o'clock above, For different companies, there are similar processes. Of course, some companies may not have the above detailed processes. I will talk about the general situation here. Well, I will not talk about it here. I will not talk about how to interview here. I just let us have a better understanding of the template method mode in Java through this column. So let's get back to business now.　　昔日天真烂漫的小女孩渐渐失去了笑容，在此期间，她似乎忽视了一直注视着她的老父亲。一个在不断奔跑，一个在静心守望。梦想面前，他们离得原来越远……Charm 8:15 001 Above神秘博士再度归来！博士将踏足美国，与Amy和百夫长Rory展开全新征程，等等，还有！River Song，这个神秘莫测的女人将再次回到博士身边，River Song到底是谁？她和博士是什么关系？万众期待的“博士的妻子”一集也将在本季中播出，由科幻大师尼尔·盖曼亲自撰写的该集将会把剧情推向何处？又会揭开博士的哪些秘密？乾隆皇帝微服出巡路过十全县，在荷花塘邂逅陈青莲，生下一子陈文杰。魏贵妃担心自己的儿子永琰继承皇位会有潜在威胁，暗遣太监徐安到陈家除掉孩子。陈青云知道事关重大，把自己的儿子交出替死。乾隆的佛前替身了然方丈从徐安手中救下孩子，秘密带回京城护国寺抚养，连乾隆也被瞒住。陈青莲以为儿子已遭残杀，由爱转恨，离家出走学得武功，要找乾隆讨个说法。陈青云的妻子因痛失儿子投塘自尽，陈青云把她埋葬在荷花塘边，却以陈青莲的名义立了墓碑，以绝皇宫无尽的追杀。九年以后，陈青云以乡试解元的资格带着陈文杰进京会试，路遇劫匪，财物尽失。陈文杰装成双腿残废，爬着要饭供陈青云到京城。永琰化妆成破落子弟在民间历练，与讨饭的陈文杰发生冲突，九岁小和尚心远出街化缘遇上，以惊世骇俗的武功镇住永琰，同陈文杰相识。心远即是了然方丈当年抱回的陈青云儿子，武功超人，从乾隆留给陈青莲的爱情信物佛珠串上学会一百零七种绝顶神功，其中一颗佛珠有乾隆刻的“长春居上”四字，刻坏了微雕的水功秘笈，因此心远不会水、怕水。表兄弟不知彼此身世，一见投缘，学大人本宫舍不得她，同样也舍不得你……王穷听了哭笑不得。