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------Java Training, Android training, iOS training,. NET training, look forward to communicating with you! ------- Can be used to declare a whole bunch of methods (cannot declare member variables) As long as a class adheres to this protocol, it is equivalent to having all the method declarations in this agreement As long as the parent class adheres to a protocol, the subclass also adheres
Many of us know the IP protocol, that is, the Internet Protocol address. But it is also a datagram protocol. These basic structures are not clear to many friends. Next we will introduce the basic structure of this datagram. Internet Protocol IP) Internet protocol is a datagr
HTTP protocol details-what is the http protocol and http message structure? HTTP protocol details-what is the http protocol and http message structure ., The development technology of today's web programs is truly a battle, ASP. NET, PHP, JSP, Perl, AJAX, and so on. Regardless of the future development of Web technolog
Transferred from: Http://bbs.ednchina.com/BLOG_ARTICLE_172022.HTMIn the asynchronous half-duplex transmission protocol, the main definition of the terminal for the implementation of Transmission control and special needs issued by the command and the processing of these commands.Two protocols are defined in the transport protocol: the character Transfer Protocol
Author: vamei Source: http://www.cnblogs.com/vamei welcome reprint, please also keep this statement. Thank you! So far, we have explained the most important IP protocol in the network layer (refer to the Protocol forest ). An important supplement to the IP protocol is the ICMP protocol. ICMP
Because transactions need to implement acid, that is, atomicity, consistency, isolation, and durability, a certain mechanism is required to ensure that transactions are committed in stages. XA: XA protocol, which specifies the Transaction Manager and resource manager interfaces and adopts the two-phase commit protocol.Phase-1 Submission Protocol The phase-1 Submission p
The protocol in iOS is the declaration of a method, stating that no implementation is required, and that the part of the implementation is done by the compliance party.Look at a small example of a protocol: this example is to give two protocols, and then create two types of people to abide by the agreement.Rogue Protocol (ROGUEDELEGATE.H) #import/** Rogue
Recently in the "HTTP diagram" This book, the book mentions the domestic translation of the name of the HTTP protocol, and give some friends to discuss the original link, I looked at a bit of interesting, and I also think that translation for understanding the agreement itself is very important, the collation of some ideas.The full name of HTTP is Hypertext Transfer Protocol, and the main concern is how Tra
Gateway-Gateway Protocol (GGP) To Route packets correctly and efficiently, the core gateway needs to know the situation of other parts of the Internet, including routing information and subnet characteristics. This type of information is usually used when a gateway processes heavy loads and is the only way to access the subnet, other gateways in the network can cut traffic to reduce the load on the gateway. GGP is mainly used to exchange routing infor
Transferred from: Http://bbs.ednchina.com/BLOG_ARTICLE_172024.HTM2.4-Block Transport protocol T=1In the T=1 protocol, commands, R-APDU, and Transmission control information (such as acknowledgment information) transmitted between the TAL and IC cards are made up of blocks.The following defines the block frame structure of the data link layer, special options for the Pro
are consistent. In order to solve this distributed consistency problem, predecessors summed up many typical protocols and algorithms during the repeated trade-offs between performance and data consistency. Among the more notable are the second-order commit protocol (two Phase commitment Protocol), the Sankai commit protocol (three Phase commitment
Tags: col transmission broadcast tip Local computer network Tran technology familySingle shared broadcast channel, if two or more than two nodes simultaneously transmit, will interfere with each other (interference) conflict (collision): Nodes receive two or more signals at the same time → Receive failed! The MAC protocol uses a distributed algorithm to determine how nodes share channels, that is, when decision nodes can transmit data. It must be base
Today's Web program development technology is really a contention, ASP, PHP, Jsp,perl, AJAX and so on. Regardless of how web technologies evolve in the future, it is important to understand the basic protocols for communicating between web programs, because it allows us to understand the internal work of Web applications. This article will be a detailed example of the HTTP protocol to explain, more content, I hope you have patience to see. We also hop
Use and principle of Http://www.ibm.com/developerworks/cn/linux/l-cn-gpb/Google Protocol BufferProtocol buffers is a lightweight and efficient structured data storage format that can be used for structured data serialization and is ideal for data storage or RPC data interchange formats. It can be used in communication protocol, data storage and other fields of the language-independent, platform-independent,
In C # writing code, many times you will encounter the HTTP protocol or TCP protocol, here is a simple understanding.The TCP protocol corresponds to the transport layer, and the HTTP protocol corresponds to the application layer, which is inherently not comparable. The HTTP protoco
0 hopopt IPv6 Jump option 1 ICMP Internet control messages 2 IGMP Internet Group administration 3 GGP Gateway to Gateway 4 IP (encapsulated) in IP IP 5 ST Stream 6 TCP Transmission Control 7 CBT CBT 8 EGP External Gateway Protocol 9 IGP any dedicated internal gateway (Cisco uses it for IGRP) Bbn-rcc-mon BBN RCC Monitoring One NVP-II Network Voice protocol Pups Pups ARGUS ARGUS Emcon Emcon Xn
"OSI layer Seven Protocol" Application Layer An application that communicates with other computers, which is the communication service of the corresponding application. For example, a word processor without a communication function would not be able to execute the code of communication, and the programmer working on the word processing did not care about the 7th layer of the OSI. However, if you add an option to transfer files, the programmer of the
Brief introductionHypertext Transfer Protocol (hypertext Transfer Protocol, referred to as HTTP) is the application layer protocol. HTTP is a request/response protocol that sends a request to the server after a client has established a connection with the server, and responds to the request after the server has receive
////VIEWCONTROLLER.M//Observertrampoline////Created by Rob Napier on 9/7/11.//Copyright (c) __mycompanyname__. All rights reserved.//#import "ViewController.h"#import "RNObserverManager.h"@protocolMyProtocol @optional- (void) dosomething;- (void) Dodo;@end@interfaceMyclass:nsobject @end@implementationMyClass- (void) dosomething {NSLog (@"dosomething:%@", self);}@end@interfaceMyclass1:nsobject@end@implementationMyClass1- (void) Dodo1 {NSLog (@"dodo1:%@", self);}- (void) Dodo {NSLog (@"Dodo to go.
1. Protocol Buffers Introduction Protocol Buffers (PROTOCOLBUFFER/PROTOBUF) is a data-description language developed by Google, similar to the ability of XML to serialize structured data that can be used to persist data or serialize data to be transmitted over a network. Mainly used in data storage, communication protocols and so on. This stage supports 6 programming languages such as C + +, JAVA, Python, O
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