immutable class c#

1 //TransformChildToParentToChild.cpp: Defines the entry point of the console application. 2 //Linsen3 4#include"stdafx.h"5#include 6 7 using namespacestd;8 9 Ten classcparent One { A Public: -Cparent (): NP (1){} - intGetp () {returnNP;} the Private: - intNP; - }; - + classCchild: Publiccparent - { + Public: ACchild (): NC (2){} at intGetC () {returnNC;} - Private: - intNC; - }; - - in - int_tmain (intARGC, _tchar*argv[]) to { +cparent* poparent= (cparent*)NewCchild; -COUT

TCP (Transmission Control Protocol): responsible for connecting to the remote host IP (Internet Protocol): responsible for addressing and sending packets to the location where they are located IP Address: it is the logical address used by the network layer of TCP/IP to identify hosts in the network. It can uniquely identify a host in Interent. An IP address is a 32-bit binary address. Each IP address is divided into four segments (eight bits per segment). An IP address consists of a network addr

What happens if Class A inherits Class B, implements interface C, and Class B and interface C define variables with the same name. (instantaneous) Interface A {int x = 0;}Class B {int x = 1;}

Recently in the OPENCV-based license plate recognition, which requires some code for deep learning (python), the development language at the outset chose Python (the source of the scourge).Although the speed of Python is not too slow now, but you must use Python to manipulate the image, when implementing some algorithms, efficiency becomes very important. Unfortunately, Python in most implementations of the algorithm, because its loop operation is too slow, resulting in the implementation of the

C + + base class and derived class conversionsIn public inheritance, in private inheritance and protection inheritance, only public inheritance can preserve the characteristics of the base class, it retains all members of the base class except constructors and destructors, a

C ++ abstract class, abstract class 1. Pure virtual function definitionA pure virtual function is a virtual function declared in the base class. It is not defined in the base class, but any derived class must define its own implem

I. Class Declaration // A class is a user-defined type. The declaration form is as follows:Class Name{Public:Public Member (external interface)PRIVATE:Private memberProtected:Protect members}; After the public keyword, declare that they are class and external interfaces. Any external function can access public data and functions.After the keyword private is decla

focuses on ' method '. In the words of "Big talk design Mode", "class is an abstraction of an object, an abstract class is an abstraction of a class, and an interface is an abstraction of the behavior." ”For example, cats, dogs (ordinary concrete classes) inherit from the Animal class (abstract

Objective-C is a class-based object-oriented language. Each object is an instance object of a class. The isa pointer of the object points to the class corresponding to the object. Class describes the object data: memory allocation size, variable (ivar) type and layout.

The Nineth chapter defines the classThe contents of this chapter:How to define classes and interfaces in C #How to use keywords that control accessibility and inheritanceThe System.Object class and its role in the class definitionHow to use some of the help tools provided by VS and VCEHow to define a class librarySimil

C ++ Primer study note _ 21 _ class and data abstraction (7) _ youyuan function and youyuan class, _ 21 yuan class C ++ Primer study note _ 21 _ class and data abstraction (7) _ youyuan function and youyuan

* m_ B;};# Endif # Include "nestclass. H"# Include Using namespace STD;Class A: B{Public:B (){}~ B (){}Void operate (){Cout }};A: (){}A ::~ A (){}Void A: Operate (){M_ B = new B;Cout M_ B-> operate ();} # Include "nestclass. H" Void main (){A;A. Operate ();}Before the definition of the nested class is seen, we can only declare the pointer and reference of the nested

Balon vernacular MSDN: export C ++ classes from common DLL (2)-a closer look at the underlying mechanism of exporting C ++ classes in the previous article, we introduced how to export C ++ classes from a DLL and how to selectively export C ++ class members. So what is the un

MVC: create a class on the M layer, create the object of the corresponding class in the C layer, and then upload it to the V layer. The V layer calls the corresponding class method using the object. Have you seen this mode? MVC: create a class on the M layer, create the obje

, MyBaseClass is the base class for Myderivedclass, and DoSomething () The version is included in the Myderivedclass. because base uses an object instance, using it in a static member produces an error .This keywordIn addition to using the Base keyword in chapter 9th, you can also use the This keyword. Like base, this can also be used inside a class member, and the keyword also references an object instanc

A class template is similar to the definition and use of a function template. Sometimes, there are two or more classes that have the same functionality, just different data types, as the following statement declares a class: Class Compare_int {public:compare (int a,int b) {x=a; y=b;} int max () {return (x>y)? x:y.} int min () {return (x If you want to compare

Calculation of CIDR blocks and number of hosts of Class A, Class B, and class C IP addressesAn IP address is a 32-bit binary number consisting of four eight-bit fields. Each IP address consists of two parts: the network ID and the host ID.The first eight digits of Class A ad

Beginners in the study of object-oriented programming language, more or less questions, we write the code and the final compiled code is very different, we do not know what the compiler does in the background to do the work. These are the reasons why we only stay in the language layer, the so-called language layer is to teach us some basic grammatical rules, but will not tell us why do this? Today and we talk about a little bit of understanding is that I am learning the programming process of a

(Www.free56.cn, based from 'clr via C #')The use of base class and interface is sometimes easy to judge and sometimes difficult to distinguish.1) Main differences between the two: base class reflects the relationship between "is a", while interface reflects the relationship between "can do. Because C # does not allow m