port number with a unique identity on the network can be combined to form a uniquely identifiable identifier socket. socket principle mechanism:? There are sockets on both ends of the communication. ? network communication is actually the communication between sockets. ? data is transmitted via IO between two sockets. UDP Transport
Datagramsocket and Datagrampacket
establish the sending end, the receiving end.
set up the data package.
invokes the Send receive method of th
: Network Disk DownloadThis book is the latest edition of the 2nd volume of the 7 volume of computer programming art, which is widely concerned by domestic and foreign industry. This volume gives a comprehensive introduction to the field of half-value algorithms, divided into two chapters, "Random number" and "arithmetic". This volume summarizes the main algorithm examples and the basic theory of these algo
1.goal (target)computation Thinking (computational thinking)Understand code (read and write code) understand abilities and limits map problem into computation in the framework of a computer that transforms scientific issues2.knowledgeDeclarative Knowledge declarative knowledge states the truth, a description of the facts imperative knowledge procedural knowledge to the problem-solving process described3.Fixed-program
Write code also to read, love the whole stack, more love life. Daily update of original it programming techniques and daily practical videos.Our goal is: To play with the server Web development, to understand the mobile side, the computer client is a cinch.This tutorial is a basic tutorial for anyone who is interested in learning software development. Of course, because of the coherence of technology, it is
This article from: http://news.cnblogs.com/n/92343/
I have previously recommended C/C ++ courses for MIT. Today I saw a group of free open courses on computer science and programming on their website (YouTube video ), after reading a few courses, I thought it was very systematic, and I felt like 1.1 million users. Although it is a theoretical course, we can feel that there is still a big gap in educ
Starting from: Using Http.get () Simple network verification to prevent customers do not give the end of the computer computer programming introduction Tutorial self-studyhttp://jianma123.com/viewthread.aardio?threadid=428To the software and network verification is often needed to use the practical features, below a simple demonstration of how to use Http.get ()
Computer programming
The process of writing our ideas and requirements , in accordance with the rules and conventions that can make computers understand them, is programming. Software Development
the process of programming is software development. Development Platform
In the process of software development, we ne
The knowledge above is pe-win32 in the operation, is aimed at the PMAC subordinate machine programming, now began to explain how the PMAC host computer--pc to communicate with PMaC: to the PMAC to send control signals and to deal with the interrupt response of PMAC. This paper first describes the environment configuration of PMAC VC programming.1. Folder structur
Original address: http://blog.csdn.net/slvher/article/details/9150597Memory management is a big challenge for C + + programmers, it is absolutely worth the cautious, otherwise it is painful to let the module of tens of thousands of lines of code run up before the memory crashes. Because the location of the crash is in time and space, it is usually shown after a distance from the real source of the error. A few days ago on-line module due to heap memory write out of 1 bytes caused by various stra
This warehouse is mainly used to summarize the basic theoretical knowledge of computer science and the relevant content of mainstream programming language, each of which corresponds to a large direction.Main contentThe main computer base has the following major directions:
DataBase
Datastructure
Linux_os
Network
Algorithm
Math
The
transmitted through communication to increase the data density and ultimately reduce the storage space of data. Data compression is widely used in file storage and distributed systems. Data compression also represents the increase in size of media capacity and the expansion of network bandwidth.
Diffie-Hellman key negotiation
Diffie-Hellman key exchange (D-H) is a security protocol. It allows both parties to establish a key through insecure channels without any prior information from the ot
an octal output - - */ the - returni; -}9. How constants are represented in the C languageIntegerDecimal: The traditionalHex: Front plus 0x or 0XOctal: Front plus 0 Digit zero, non o1# include 2 3 intMainvoid)4 {5 inti =015;//octal front plus 06printf"i =%d\n", i);7 8 return 0;9 Ten}Floating point numberThe traditional notationfloat x = 3.2;Scientific counting methodfloat x = 3.2e3; The value of X is 3200float x = 123.45e-2; The value of X is 1.23451# include 2 3 intMainvo
Computer programming Languages:It is divided into machine language, assembly language, advanced languages and scripting languages.Machine language: Binary code consisting of 0 and 1.Assembly language: Changed to a slightly easier-to-understand statement written by humans.High-level language: the language in which business logic is expressed. Typically for interpreting classes (instant translation) and compi
Socket programming: Computer Network Basics
Before learning about networks, review the basics of computer networks.
Lu Xun said that there is a huge copy of the article in the world. If you have any questions, you can copy the book based on your basic knowledge.
A layered model
1. Why Layer
In order to simplify the network design complexity, communication
, scripting language definition: A computer programming language created to shorten the traditional authoring-compile-link-run (edit-compile-link-run) process. It is characterized by: The program code is the final execution file, but this process requires the participation of the interpreter, so say scripting languages are very much associated with interpreted languages. The scripting language is us
print instance function!3, you can add variables, such as x=123;4, you can write a line of multiple expressions, separated by semicolons;5, you can assign the result of a function to a variable, such as X=functioncall (...), of course, the X must first exist or be created well;6, can be run in batches, execute For Cshell want to make some custom friends, can read cshellfuncs.c. The principle is very simple, is the input programming a binary tree, lef
We usually use on the computer program such as: Thunder, WORD,QQ, Firefox, etc., these unified called application software, Python development is also the main development of this application software.If QQ this application wants to run, we must first download QQ installs the software, then installs on the operating system,But the operating system is also software, but it is a system software, software to allow must be on the hardware, that is, must h
: Network Disk DownloadVolume 1th introduces the basic concepts and techniques of programming, and then explains in detail the content of information structure, including the representation of information inside the computer, the structure relationship between data elements, and the effective information processing methods. In addition, the book also describes the progr
This article mainly introduces C # programming to obtain client computer hardware and system Information function, can realize the client system CPU, hard disk, motherboard and other hardware information and client operating system, IP, Mac and other information operation skills, the need for friends can refer to the next
This article describes the C # programming
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