C # Two basic ways to prevent Windows programs from running repeatedly

General If you run a software, put him in a running state, and then we go to open this program will prompt us"The program has started or can not be repeated to start this program", such as QQ battle platform, restricting a machine to start two

Programming Algorithm-addition code without addition, subtraction, multiplication, division (c)

Addition code without addition, subtraction, multiplication, division (c) Address: http://blog.csdn.net/caroline_wendy Question: To write a function and calculate the sum of two integers, The +,-, *, And/operators must not be used in the

Modify the DLL file in C # (decompile and re-compile)

After the DLL file is generated, if no source code exists, modify the content.You can use Microsoft's built-in ildasm and ilasm programsDecompile the DLL file into an il file with ildasmIldasm test. dll/out = test. IlTwo files, test. Res and test.

C # To quickly release the memory, the task manager can verify

Close () first ()Then dispose ()Followed by = NULLGC. Collect ()For example:Ms. Close (); // close the stream and release related resources.Ms. Dispose (); // by default, only unmanaged resources are released if the stream is used.MS = NULL; // This

When to use empty () and defalutifempty () in C ()

In the project, when we want to obtain the ienumerable set, this set may be null. However, an empty set is returned.   Assume that an empty ienumerable is returned when the store is not open, and a non-empty ienumerable is returned when the

Unity basic C # access between game objects

Script Language: C #   1. Create two objects in the Unity project: Cube and sphere. 2. Add the cubescript and spherescript for the cube and sphere respectively: In spherescript, the two define a function dosomething (). The specific code of the

Cf # ff (255)-div1-C [water question, enumeration]

[Tucao]: I didn't plan to write the answer to this question, but it was terrible to see wa 13 times. Remember to record it. Their "classification and discussion capabilities" are inherently poor. At first glance, I thought it was Lis. Then I ignored

Codeforces round # ff (255) C. dzy loves sequences (LIS upgrade)

Title: C. dzy loves sequences (LIS upgrade) Question: Of the N numbers, a maximum of one number is changed, and the maximum length of the subsequence (continuous) that can be reached is obtained. Analysis: Consider the number of I, whether it can be

C # example Singleton

【C # example Singleton] 1. Classic solution: using System; public class Singleton { private static Singleton instance; private Singleton() {} public static Singleton Instance { get { if (instance == null) {

Readonly and const in C #

Compare readonly and const in C #  C # has two constant types: readonly (runtime volume) [Read-run] and const (compilation volume) [const-compile]. this article compares the two types of features and describes their application scenarios. Working

C # practice capture

Using system; namespace z1_jiuns {public class z1_jiu {public static void main () {string [] namelist = NULL; createnamelist (ref namelist); string [] afternamelist; zhua (namelist, out afternamelist); printnamelist (afternamelist); console. readkey

Gui control Example 2 (C #)

Using unityengine; using system. collections; public class guitest: monobehaviour {public guiskin myguisking; private rect windowrect; private vector2 scrollposition; string info = "test \ n" + "test \ n test test test \ n "+" test \ n test \ n test

Volatile keywords in C

A variable defined as volatile means that this variable may be unexpectedly changed, so that the compiler will not assume the value of this variable. Precisely, the optimizer must carefully re-read the value of this variable every time when using

Unity [C #] reflection use

Reflection one of the most powerful tools for C # programmers. The most common example shows that reflection is useful as a plug-in system. If you are creating an extension that accepts user-created extensions, is there a way to know in advance

C # two simple mechanisms for implementing asynchronous programming

Understanding the differences among programs, processes, and threads: in short, a program has at least one process, and a process has at least one thread.A process is a program running in the memory (that is, a running program); a process generally

<In-depth understanding of C pointer> Study Notes and summary chapter 4 pointers and Arrays

What is an array: Arrays and pointers are different in my understanding. Because of the similarities, arrays and pointers are essentially the same in some documents. Because of the differences, there are also some documents that the array and

Unity [C #] reflection to update scripts

I am using a unity 3D project. This project is an Android app that downloads assetbundles and loads their content. However, since assetbundles cannot contain scripts, I will use pre-compiled C # scripts, and use mono reflection to load it (I don't

Bit field, field

Bit field, field 1. bit field is a group of adjacent bits in a signed int or unsigned int (C99 also allows _ Bool fields ). C uses the unsigned int as the basic unit for allocating memory space to the bit field structure. A bit field is created by a

_ Declspec (dllimport), declspecdllimport

_ Declspec (dllimport)'s little secret (to) and declspecdllimport When I used a dll (lib + dll) with my colleagues yesterday, I found that he was referencing the header file and didn't use _ declspec (dllimport), but the program was completely

You can edit the ListCtrl file in MFC and the ListCtrl file in MFC.

You can edit the ListCtrl file in MFC and the ListCtrl file in MFC. Recently, a list control that can be edited is required for the project. Because the list control provided by MFC only supports editable on the first line, it cannot meet the

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