what is stack exchange

must use the application-layer protocol.There are many application layer protocols, such as HTTP, FTP, Telnet, etc., and you can define the application layer protocol yourself.The web uses the HTTP protocol as an application-layer protocol to encapsulate HTTP text information and then send it to the network using TCP/IP as the Transport layer protocol. ”And what we usually say the most socket is

What is the difference between = and equals in C #? What is the comparison process for value type and reference type? Using system;Using system. Collections. Generic;Using system. text; Namespace consoleapplication1{Class person{Private string name; Public string name{Get {return name ;}Set {name = value ;}} Public Per

In the early 90, with the improvement of computer performance and the increase of traffic, traditional LAN has more and more exceeded its own load, switching Ethernet technology came into being, which greatly improved the performance of LAN. The two-tier switch plays a key role in the development of the switch technology, but with the maturity of the two-layer switch technology, we have not seen the two-layer switch to make any breakthroughs in technology for a long time.

design a new language? There are only two reasons, either the old language is really unacceptable or the specialized language designed for the domain. I will not talk about the next one, because this kind of things will never be good if there is no specific domain knowledge (for example, SQL will never come from a very bad database ), basically, this is not a qu

What is the difference between a SQL Server database and a MySQL database? A lot of friends in the IT industry. For SQL Server database and MySQL database often confuse, think these two kinds of database is the same, otherwise, today we analyze the difference between these two kinds of database:What is the difference b

　　What is https: 　　HTTPS (Secure hypertext Transfer Protocol) Secure Hypertext Transfer Protocol It is a secure communication channel that is based on HTTP development and is used to exchange information between client computers

This article focuses on the appropriate direction of node. js, what is node. js suitable for? And what are the benefits of node. js? Please see the article for more detailed details. First, let's talk about what node. js is suitable for: First of all, Nodejs

http://www.codelast.com/?p=7248Reprint Please specify source: http://www.codelast.com/This article is my translation of this article: What is a PermGen leak? For readability, I enclose the original text here, where translation is interspersed. In addition, in order to prevent the original link in the future after the e

What should I do if my application is killed? The application is easy to be killed when running in the background. This is normal, but when you return to the foreground, it is easy to have a null pointer. How to solve this problem and check Stay's opinions. Let's jump out a

have any connection.Because the capture is X's reference, so the above three functions see X is the same variable.This is important because the local variables in JavaScript are not all in the heap . At least GOOGLE V2 is not. But the x above line 3 must be "Born and live" in the heap , otherwise func1,get1, Get2

What is ColdFusion Markup Language (CFML? ColdFusion Markup Language (CFML) is a label-based Description Language used for fast network development. It is completely processed on the server. CFML is easy to master and powerful enough to handle complex network application lo

security, people who have used Linux agree that Linux is similar to UNIX. UNIX system has been used as a high-end application or server system, so has a set of perfect network management mechanism and rules, Linux followed these excellent rules, so that the network can be configured very strong, providing a great flexibility for system management.Article Source: Marco EducationOfficial: Marco Linux operationsTechnology

Recently in the exchange with peers, found a lot of beginners, only know a little bit of outdated skills, like what non-stop hair chain Ah, the site's keyword density ah, the title added keywords Ah, and so on, do not know the real SEO core and direction is what, so that adhere to the so-called SEO Route 2 years, the d

(Sunday)Speaker: Yu Jianwei Dangdang Sales Management Books 2011-2015 consecutive 5 years ranked top 10 best-selling "sales is to deal with people," the author, the net name "color elder brother".Course Content:1. China's social stratum analysis and Chinese-style interpersonal communication skillsCustomer boss You always see, you see is not able to shoot the grass-roots people, how to break the board. Chin