C++

Linux c: Serial port settingsSerial operation is no more than the following:1 Open2 Setting the serial port properties3 Read Writestruct Termios can show all the serial port properties, which are not explained in detail here.See "Linux Open Class"

"C + + Primer" This book can be said to be recognized as the best book to learn C + +, but I do not think it is particularly suitable as a textbook, the order of the contents of the book makes some egg pain. I personally think that this book is not

?Here's what I've found (ignoring the old non-generic collections): Array ?-C Array, though the. NET array? can? Have a Non-zero starting index. list ?-? std::vector Dictionary ?-? Unordered_map hashset ?-? unordered_set Sorteddictionary

There are many usages of const in C + +, and const can be used to modify variables or functions, and it has different meanings in different environments. Today, the difference between a const plus a function and a function is mentioned. Like what:

Transferred from: http://www.cnblogs.com/caikehe/archive/2013/01/12/2858017.html(1) First write the following code as shown in Notepad, and save as Hello.cpp, assuming its save path is C:\Users\Administrator\Desktop.#includeusing namespace Std;int

There are four ways: 1. Using heap space, return the requested heap address, and note release 2. The function parameter passes a pointer that returns the pointer 3. Returns a static variable (shared) 4 defined within a function. Return global

Originally I also used vc++6.0 to write C language, but because this version is too old and incompatible with win7,win8,win10 so to download the vs2012, the beginning of the time do not know how to use, now learned to write a tutorial to share a bit.

1. Reference methodsThere are two kinds of loading methods on the net, introduce many, no longer repeat StdCall calling convention Ctypes.windll.LoadLibrary ("DllPath") cTYPES. Windll ("DllPath") CDECL calling convention Ctypes.cdll.LoadLibrary

1. In a function, you can assign a storage unit to a variable as long as it is describedError: A variable such as auto and register is assigned a storage unit when the function that defines it is calledAuto: The default local variable storage, (this

Initialize ListClass Name:: Class name (parameter 1, parameter 2,... Parameter n): data member 1 (parameter 1), data member 2 (parameter 2),..., data member n (parameter N){...}Rule 1, initializing the list for data member initializationRule 2,

When programming Linux, we usually use the system method if we need to invoke a shell command or script. such as System ("LS")The method returns a value of 0 or-1, which is either success or failure. And sometimes we want to get the result of shell

Four types of conversion operators are defined in C + +: static_cast, const_cast, dynamic_cast, and reinterpret_cast.The usage of static_cast is similar to the coercion type conversion in C, which can convert one type to another type:Double N;int

one. Binary conversion to picture MemoryStream Ms=NewMemoryStream (bytes); Ms. Position=0; Image img=Image.fromstream (MS); Ms. Close (); This. pictureBox1.Image two. Conversion code for byte[] and string in C #1, System.Text.UnicodeEncoding

Let's start with the GC garbage collector for C #, with this garbage collector C # developer who doesn't care about garbage collection like a C + + developer!But GC is a double-edged sword, the GC only manages managed resources, is powerless for

3D Development of DirectX under C #, an example of a rotated 4 pyramid.Recommended to see two documents .It is also best to download a DirectX SDK (August). rar. Some of the examples are still very good.First, the computer installed DirectX.Second,

C # 6.0 has added a lot of things, C # language style has become better, the weekend busy a morning to do a demo. Direct code upFull code:#define Asyncusing system;using system.collections.generic;using system.diagnostics;using System.IO;using

If your class supports foreach, you must have a GetEnumerator method in the class that returns an enumerator of type IEnumerator;public class MyStruct {public string[] sName = new string[] {"Zhang San", "John Doe", "Harry"};

Extension methods enable you to "add" methods to an existing type without creating a new derived type, recompiling, or otherwise modifying the original type.An extension method is a special static method, but it can be called just like an instance

struct: is a custom collection that can put all kinds of elements in the same way as a collection.Example of a definition:struct student{public int nianling;public int Fenshu;public string name;public string sex;public int sum;}The above statement

Character arrangement and character ArrangementProblem: enter a string (requires that there are no repeated characters) to print all the characters in the string. Idea: Find all characters that may appear at the first position, and exchange the