C++

1, in order to distinguish the octal system, the hexadecimal difference: eight before adding 0, hex plus x0, such as 058,x059;2, binary conversion, binary, octal, decimal, hexadecimal conversion between each other. (converted to binary after the

Previously in the book to see the function pointers related to not much attention, but recently in the actual work has come in handy. So I studied it carefully again.Declaration of function pointersIt is very simple to declare a function pointer by

1#include 2 using namespacestd;3 DoubleCalculateDoubleXDoubleYDouble(*pf[3])(Double,Double));4 DoubleAddDoubleXDoubley);5 DoubleAttDoubleXDoubley);6 DoubleAppDoubleXDoubley);7 intMain ()8 {9 Double(*ps[3])(Double,Double)={Add,att,app};Ten

Let's start with an example.Cases:#include"stdio.h"intMain () {inta[5] = {1,2,3,4,5}; printf ("A is an address%d\n", a); printf ("A[0] is a number%d\n", a[0]); printf ("&a[0] is the address%d\n", &a[0]); printf ("&a[1] is the address%d\n", &a[1]);

PublicPartialClassMultithread:Form {Publicint threadh;Thread CodePublicString strURL;The URL of the receiving filePublicFileStream FS;PublicHttpWebRequest request;PublicByte[] nbytes;Receive buffersPublicint nreadsize;Number of bytes Receivedint

First, the principle of the algorithm1, compare the adjacent elements. If the first one is bigger than the second one, swap them both.2, for each pair of adjacent elements to do the same work, from the beginning of the first pair to the end of the

1. Code#include int main () { using namespace std; int num1; int num2; int total=0; cout > NUM1; cout > num2; for (NUM1; num1Run results2. Code#include int main () { using namespace std; Double total = 0.0; double in; cout > in; while

personal feeling VC6.0, and there are many bugs exist, and Microsoft has not updated them. So, when you choose C + + programming. Use ide,vc6.0 after a period of time, I resolutely give up, think or use VS2010 more promising. But when the use of VS20

Using System; Using System.Collections.Generic; Using System.Windows.Forms; Using System.IO; namespace Gobalexception {    static class program     {     & nbsp; //         Main entry point for the application.        //         [ STAThread]        

///Use reflection and generics///// public static list converttolist (DataTable dt) { Defines the collection list ts = new list (); Get the type of this model type type = typeof (T); Defines a temporary variable,

One, list namespaces: System.Collections.Generic (assembly: mscorlib)Second, list description:1), represents a strongly typed list of objects that can be accessed through an index, and provides methods for searching, sorting, and manipulating

Method One: stringDirpath =@"D:\App1"; Liststring> dirs =Newliststring> (Directory.getdirectories (Dirpath,"*", System.IO.SearchOption.AllDirectories)); foreach(varDirinchdirs) {Console.WriteLine ("{0}", dir); } Console.WriteLine ("{0} directories

1, Situation Note: Recently developed a Windows service, the local win7 system can be normal, put on the server installed on the failure. Startup Failure Example diagram:Workaround: Run-"Input: Eventvwr.mscOpen your Event Viewer and the latest

Func is a delegate, which is added in 3.5, 2.0 inside we use the delegate is located under the System.core namespace, using a delegate can improve efficiency, such as in reflection can compensate for the loss of performance of the Delegate,func.The

On the internet to see a lot of ideas and methods of reflection, found this is goodTo use the reflector

The choice of whether to design your functionality as an interface or an abstract class can sometimes is a difficult one. Anabstract class was a class that cannot being instantiated, but must was inherited from. An abstract class could be fully

Today, we will mainly explain how to use the data types and expressions of Object-C, four basic data types of Object-C: int, float, double, char 1.int type There are two special formats in object-C: 1. if the first integer is 0, the integer is

Uicolor + Hex. h #import @interface UIColor (Hex) + (UIColor *) colorWithHexString: (NSString *) hexString;+ (CGFloat) colorComponentFrom: (NSString *) string start: (NSUInteger) start length: (NSUInteger) length; @endUicolor + Hex. m #import

A controller ---- B controller ----- C Controller: C jump directly to   Custom C controller return button 1 uibarbuttonitem * backbarbutton = [[uibarbuttonitem alloc] initwithtitle: @ "return" style: uibarbuttonitemstyleplain target: Self action: @

In fact, programming in unix c often only requires code. It seems that there is no better integrated development environment IDE, the following uses my experience to describe the combination of tools developed on the UNIX platform within a company.