11-13 C # Basics-Database transactions

Transaction Definition: In the remote operation, have to go through two steps, first delete after inserting or first insert after delete, all to call two database, in order to ensure the integrity of the database, as long as the process of

Summary of Linux C string library functions

#include ignores the size to compare whether two characters are equal. If S1>S2 returns a number greater than 0.If S1 = S2 Returns a 0. If S1/***********************************************************************************************************

Boost.asio C + + Network programming Translator (25)

Agent ImplementationThe agent is typically located between the client and the server. It accepts requests from the client, may modify the request, and then sends the request to the server. The results are then retrieved from the server, and the

Four ways to close the current thread in C #.

The. NET class library has helped us to close the window, and if this window is the main window of the system, closing this window should exit the entire application.But in fact sometimes this is not the case, close the window, just stop the current

Research on Lock (lock) in C # and actions across the threading UI

This article focuses on the lock (lock) used for multithreading synchronization in C # as a research object. Because you want to display the results more intuitively, so, in doing the demo, the multi-threaded through the event UI code also written

C Language Basics 1

C Language Basics 1Four elements of a function: name, input, output, processing.source file (extension. cpp)(The comment is behind the double slash)Grammatical features:Most of the code is written in curly braces {}.The end of the sentence is

Simulation algorithm of data structure and algorithm C + + implementation

Simulation algorithm: Simulate the whole process, by changing the mathematical model of the various parameters, and then observe the change of these parameters caused by the process state changes.Algorithmic thinking: Use random functions to

Program Ape's---C language details 22 (function return pointer considerations < dangling pointer >, view the amount of memory the process can allocate)

Main content: function return pointer considerations , viewing the amount of memory the process can allocate#include char * favorite_fruit () {static char fruit[] = "Apple"; Without static, this function also returns the pointer as well as

VS build Lua development environment and Luabridge Register C + + class (COCOS2DX project) (ii)

lua

In this article we register 2 classes to test the use of the Luabridge, before we begin, we use C + + to invoke the LUA function on the basis of the previous article. We add a Main.lua file to the resource folder. The LUA code is as follows:1

C + + Classic books

1. C + + Primer "Introduction to C + +" (usually without Chinese name)by Stanley B. LippmanThere are third and fourth editions, such as their name, is the only choice for the introduction of C + +, is a comprehensive bibliography, rich content,

Methods for debugging DLL engineering in VS2010 C + +

1, in the "solution Explorer" to find the DLL project to debug, right-click, select Set as Startup Project, set the DLL to debug startup project, then select the DLL project, right-click, select Properties, Open the Property page Settings page;2, in

Program Ape--c Language details 15 (preprocessing command details #error, operator # and # #, __file__, __line__)

Main content: preprocessing command details #error, operator # and # #, __file__, __line__#include /* Contains this header file, not all of its functions are linked to the program */* # #运算符 */#define MK_ID (n) i# #n/* means to connect two tokens

Java calls C language write so file

Java calls C language write so fileBecause the work needs to write a so file, as a mobile phone hardware IC reading card and apk interaction Bridge, that is, middleware, read the internet has said that the implementation of JNI interface technology,

C # Connection string set timeout time

The timeout period has expired. Time out before the operation completes or the server is not responding "(Linq connection database, MySQL database)The first type:_db. Connect.connecttimeout = 500;//program errorBecause the timeout property of

Reading notes-clr via C # Synchronous construction 28-29 Chapters

ObjectiveThis book in the past few years fragmented read two or three times, as a classic book, should repeat read and reread, since I began to write Bo, I am also ready to think of the classic good book reread carefully read it again, and put the

"C #" recursively searches for a specified item (file or directory) under a specified directory

Don't rush the spray first, please listen to my explanation.It is true that the same functionality can be achieved using the GetFiles, GetDirectories, and GetFileSystemEntries methods under the existing directory classes, but believe that I am not

C # Learning Notes----Network (24th)----Sample Code

URI (Uniform Resource Identifier, Uniform Resource Identifier)System.Net.WebClient Request FileThe. NET Framework currently supports URIs that begin with http:, https:, and file: identifiersWebClient download method, DownloadFile ()New WebClient ();

C # Programming (10_ concatenation of multiple strings)

Concatenation is the process of appending a string to the end of another string. + operator, the compiler creates a single string. "Data-guid=" 7b08363269c65c3e363f0442f018a420 " > When you use the + operator to concatenate string literals or

. NET (C #) Call WebService get client IP address zone (non-async)

Function Description:This interface is used to obtain the IP address to which the client accesses the region (country, city, etc.). Query the country, city, owner and other information by entering the IP address. No country specified for China input

One documentary, first-year primary school documentary

One documentary, first-year primary school documentary   1. C ++ Primer 2. data structures and algorithms 3. Windows core programming 4. C ++ disassembly and Reverse Analysis Technology Secrets 5. Data Reproduction 6. Software Debugging 7. C ++

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