Making microsecond precision Timers with Visual C + +

In the industrial production control system, there are many operations that need to be done regularly, such as: Timing display the current time, periodically refresh the progress bar on the screen, the host computer timing down the machine to send

C + + Builder realize online receive email

We use 163, long pass Fei Hua and other free e-mail, we will find that these e-mail has the ability to send and receive online, that is, can be sent through the browser and receive e-mail messages. These features are typically implemented through

Effective C # Principle 45: Select strong exceptions to protect programs

When you throw an exception, you introduce an interrupt event in the application. And crisis to the control process of the program. So that the desired behavior cannot occur. What's worse, you have to leave the cleanup work to the programmer who has

Effective C # Principle 32: Select Small and cohesive assemblies

This principle should actually take this name: "You should create assemblies that are reasonable in size and contain a small number of common types." But it was too long, so it was named after what I thought was the most common mistake: developers

Effective C # Principle 30: Choosing a CLS-compliant assembly

. The NET runtime environment is language-Independent: developers can write components in different. NET languages. And this is often the case in actual development. The assembly you create must be compatible with the common Language System (CLS) in

produce ql*loader files with C + +

1. Foreword At present, many unit mis systems in our country are built on PC or novellnetware LAN environment, database and development tools adopt Foxpro2.5 for DOS or FoxPro 2.5 for Windows, DBF file as data organization management means, With

The difference between char * and Char [] in C + +

Problem Introduction: A previous default error was found during the internship, and the same char *c = "abc" and Char c[]= "ABC", which changed the The tolerance program will crash, and the latter is completely correct. Program Demo: Test

A summary of mixed programming between C and assembler

In C and assembly mixed programming, there is the C language and assembly language variables and function interface problems. Variables defined in the C program, compiled to an. asm file, are placed in the. BSS area, and the variable name is

section and Problem algorithm code (C)

Title: Given integer a1, A2, ..., an, to determine whether a number can be selected from it, so that their and exactly k. There are many solutions, the simplest solution is to use depth first search, time complexity O (2^n), not the optimal

C + + Builder 2010 A bug in the collection class

Today, using C + + Builder 2010 to write a small code, use the collection class, can set the results of the operation is not correct, excluding other reasons, the final determination should be the collection class source code problem, the following

Learn point C language (one): Goto statement

Example 1: #include  #include  int main(void) {   char str[256];   scanf("%s", str);   if (strlen(str)      goto Label1;   } else {     goto Label2;   }   Label1:     printf("\n输入内容没有超过10个字符");     goto Label3;   Label2:

C + +: Random generator Bernoulli distribution (Bernoulli distribution) detailed

Bernoulli distribution (Bernoulli distribution) is the probability of judging whether something is happening or not happening; Given the parameter p, the probability value can be modified, the occurrence probability (true) is P, and the 1-p

"Effective C + +" Reading notes 02: Reduce the chance of #define appearances with Const,enum,inline

Before learning C language, our teacher taught us that it is best to define a number with a macro (#define). So that I have been accustomed to #define age 12. In the C language environment, this is indeed an effective way to increase the

C # communication with Panasonic Fp∑ programmable controller

This paper introduces the communication between the host computer and Panasonic FPG-C24R2 PLC by introducing ActiveX control MSComm and programming with C # language, and gives the engineering example. The method is simple, reliable, easy to

C # implements free transformation of all controls in a form following form dimensions

/**********************************c# the code implementation control with the form of the free transformation ********************************************/ Article Source: Star Soul Studio Author: Moon Cloud 2008.8.4 /******************************

Basic operation of String for C + + implementation of data structure

A string is a finite sequence consisting of 0 or more characters. In general, the sequential storage structure is used, and the end ends with ' I ', but does not count to the length of the string. Sample program: (Adapted from "liar data

CGI programs written in C + +

After the previous study, you should be able to use the example of ANSI C for their own server to write CGI programs. ANSI C is chosen because it is almost ubiquitous and is the most popular C language standard. Of course, today's C + + is also very

Implementing a priority queue with key values in C #

First, you need an interface to get the keys and to get and set the values, as follows: namespace Skyiv.Util {  interface IKeyValue  {   K GetKey(T x);   V GetValue(T x);   void SetValue(T x, V v);  } } Next, is our priority queue with the key

The effect of the WinForm TreeView node "unfolding ..." in C #

The simpler approach is to add a child node hint. The thread then requests the real child node and replaces the hint node after completion. The code is as follows View Plaincopy to Clipboardprint? 01.using System; 02.using

C # thread-based line-controlled system

With ManualResetEvent and AutoResetEvent, you can control the running of threads and the communication between threads. MSDN's Reference is: Http://msdn.microsoft.com/zh-cn/library/system.threading.autoresetevent.aspx http://msdn.microsoft.com

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