C++

---old text finishing---The Bitset object is stored with each bit bit 0 or 1, which can be used to mark the presence or absence, the location subscript and the stored content to form a key-value pair. The advantage of using bit notation is that

int Mystrlen (char *a)//Find string length{int b=0; While (*a){b++;a++;}return B;}Char *mystrcpy (char *d,const char *STC)//copy string {While (*STC) {*D=*STC;stc++;d++;}d=' + ';return &d[0]; }Char Itoh (int i)//hexadecimal number to string{if (i>9)

This problem can cause a confusing compilation error,If there are other classes of pointers in the class, do not include them, declare them in advance.Class_a.h#ifndef class_a_h #define Class_a_h class B; class A { public: void Print

If your WinForm program requires administrator privileges to perform properly, add the following code:Static classProgram {/// ///The main entry point for the application. /// [STAThread]Static voidMain (string[] Args) {//get the currently

The delegate can be understood as the function pointer in C or C ++. Calling the delegate actually calls the delegate method. The procedure for using delegation is as follows: 1. Define Delegation // Define the delegate use keyword delegatePrivate

46th questions What does the following macro do? #define ROUNDUP(x,n) ((x+n-1)&(~(n-1))) Description: Reference: http://bbs.chinaunix.net/forum.php? MoD = viewthread & tid = 814501. Used for memory alignment. n is the power of 2. 47th

1. Import Support class libraries for office and Excel On the reference of the project, add a new reference and select Microsoft Excel ** Object Library and Microsoft Office ** Object Library After adding the package, you can get the reference

Question 6 #include int main() { int a=10; switch(a) { case ‘1‘: printf("ONE\n"); break; case ‘2‘: printf("TWO\n");

Combination code (c) Address: http://blog.csdn.net/caroline_wendy The number of combinations of a string, such as ABC. The output is a, B, c, AC, AB, BC, and ABC, that is, the combination that contains the sequence. SimilarFull ranking of BITs,

The guilayout layout can automatically arrange related controls, for example: 1 void ongui () 2 {3 guilayout. Button ("This guilayout button"); 4} Effect:       The widget size can be automatically scaled to fit the size, arranged from the upper

Every process in a multitasking operating system runs in its own memory sandbox. This sandbox isVirtual Address Space(Virtual address space) in 32-Bit mode.Always one4 GB memory address block. These virtual addresses pass throughPage table(Page

Read files: 1 streamreader sr = new streamreader (filename, encoding. Default); 2 string content = ""; 3 content = Sr. Readline (); 4 5 while (content! = NULL) 6 {7 // operation logic 8... 9... 10 content = Sr. Readline (); 11} 12 Sr. Close ();View

C # Design Mode Study Notes-singleton Mode Recently, when I was learning the design mode and the creation mode, I encountered the singleton mode (or Singleton mode). Now I want to take some notes. The definition in design patterns: Elements of

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 function.

C # escape characters: · A special character constant;· Starts with a backslash "\", followed by one or several characters.· It has a specific meaning. It is called "escape" because it is different from the original meaning of the character.· It is

Meaning of static void main (string [] ARGs) in C # Static: Declares the main method as static. Void: indicates that the main method does not return any content. String [] ARGs: this parameter is used to receive input from the command line.

To fully utilize the space and solve the "false overflow" problem of sequential queues, two methods can be used: one is to move the data forward and leave the empty storage unit at the end of the team; the other is to construct an ordered queue into

2. Common function calls An example of a common function call:/* Self-Contained header files */Void myfun (int x);/* The declaration here can also be written as void myfun (INT )*/Int main (INT argc, char * argv []){Myfun (10);/* call the myfun (10)

1 using system; 2 using system. collections. generic; 3 using system. LINQ; 4 using system. text; 5 using system. threading. tasks; 6 using system. collections. generic; 7 using system. windows; 8 using Microsoft. win32; 9 using system. security; 10

If you want to understand generics, you 'd better first understand the following code example: In this example, two classes are created, and any types of values can be added to the class, and can be read using the foreach statement. 1 // The first