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1) layer-2 Exchange Technology The layer-2 switching technology is relatively mature. The layer-2 switch is a data link layer device that can identify MAC locations in data packets.Address information, which is forwarded based on the MAC address, and the corresponding MAC addresses and ports are recorded in a local loc

" idea, may be another site is an absolute disaster. A good example is the Splash page, shown in Figure 1-8, which is used to describe the first page of a Web site. "Fly out" is used to set the tone of the site, often have a lot of interesting animation, used to remind users

Label:From:http://www.cnblogs.com/xiaochaohuashengmi/archive/2011/08/25/2153016.html What is the difference between MySQL int (1) tinyint (1)?I have specified the field length, does the type still make sense? The reply:mysql in int (1) and tinyint (

Why n-layer architecture? Because each layer can only change a small numberCodeIt can be put on different physical servers, so the structure is flexible and the performance is better. In addition, other layers in each layer are completely invisible. Therefore, you no longer need to re-compile or change all layers to modify or update a layer. This is a very po

very suitable for data flow processing. It doesn't matter if you haven't touched lambda, we'll talk about it later. This is a "declarative (declarative)" programming paradigm. With the four-string map call, we first declare what kind of processing the data flow "will" take, and when there is data flow, it will be processed one after the other according to t

Do not say his concept, if you want to build a computer classroom, first to have a room, the room to have n computers, there are n tables, n chairs, white boards, projectors and so on, these are what, just now we said, this is the object, can see the entity, Can say this computer classroom unit is this one entity object, they together compose this computer classr

Do not say his concept, if you want to build a computer classroom, first to have a room, the room to have n computers, there are n tables, n chairs, white boards, projectors and so on, these are what, just now we said, this is the object, can see the entity, Can say this computer classroom unit is this one entity object, they together compose this computer classr

ArticleDirectory Enable Service Analyze packets and process requests Summary With the following knowledge: What is unknown about ASP. NET (1) What is unknown about ASP. NET (2) I think it is n

MVC Learning Series 1 -- What is MVC, Learning Series 1 -- mvc The dotted line above indicates a passive role. Indicates an active role. 1.Controllers and views: The relationship between the Controller and the view is bidirectio

)] is the selector that defines calling the database table in the attribute settings. Lines 30-36 in the same Code define the attributes of a database. Enter the following content in the Code: 1 @model DynamicCodeGenerate.myModel 2 @{ 3 foreach(var item in Model.DataBase.Tables){ 4 @:TableName:@item.Name 5 foreach(var itemcolumn in item.Columns) 6

three basic structures of programming: object-oriented, process-oriented, functional programming1, what is object-oriented programming object-oriented programming is a way of programming, this programming method of landing needs to use "class" and "object" to implement, so, object-oriented programming is actually the u

Everyone is struggling in the workplace. It is not for colleagues or for the company, but for yourself! "Is this still useful ?", Many of my friends are ridiculous. "What an obvious truth !". However, although this is the case, the reality

do not provoke others, others do not necessarily do not provoke us, although the heart is very uncomfortable, but the problem also needs to be solved.　　Site attacks are generally divided into 3 categories, namely ARP spoofing attacks, CC attacks, DDoS traffic attacks.　　First, say ARP spoofing attackIf an ARP spoofing attack is to be initiated, the first thing to

What is the difference between php reverse reference 1 and $1? Php regular expression. someone will see it using \ 1. Use $1 later What are the differences between the two? Which on