dfast vs ccar

First, this pointer 1. C + + program to C program translation Class Ccar { struct Ccar {public : int price; int price; }; void Setprice (int p); void Setprice (struct ccar * This,int p) { }; This->price = p; void

Background: C + + is developed on the basis of C language, the first C + + compiler actually translates the C + + program into a C language program, and then compiles it with the C language compiler. C language has no concept of class, only structure, function is global function, no member function. Translating a class into a struct and translating the object into a struct variable is obvious, but how should the member function of the class be translated? To "my.modify ();" How do you translate

Friend is a friend and friend of the class.Friend function: A friend function of a class can access the private members of the classWe can use the member functions of one class (including constructs, destructors) as friend functions of another class. As followsclassCcar;//declare the Ccar class in advance so that the following Cdriver class uses theclassCdriver { Public: voidModifycar (Ccar *pcar);//Modi

hasattr (tom, "age"): #True delattr (tom, "age") #None print getattr (tom, "age", False) #False #print getattr (tom, "age") #AttributeError: CStudent instance has no attribute 'age' #delattr (tom, "name") #AttributeError: CStudent instance has no attribute 'name' else: pass print "=================================================== ============= " class CMachine (object): # 新式 类 def hello (self): print "invoke hello in CMachine" class CThing (object): # 新式 类 def hello (self

Member object: the member variable of one class is an object of another classThe class that contains the member object is called the enclosing class (enclosing)The following code:classCtyre {Private: intradius; intwidth; Public: Ctyre (intRintW): Radius (r), Width (w) {}//Init list}; classcengine {};classCcar {//Automotive class, closed classPrivate: intPrice ; Ctyre Tyre; Cengine engine; Public: Ccar (intPintTrinttw);};

C + + When it first appeared, C + + programs need to be translated into a C program and compiled by the C compiler to run.Consider translating the following C + + programs:class ccar {public: int price ; void Setprice (int p);}; void Ccar::setprice (int p) { = p;} int Main () { ccar car; Car. Setprice (a); return 0 ;}1) c does not have a cla

the constructed object./*************************************** **************************************** ***************************************/ # Include # Include // Automobile. Do you want to build a car? Is the project big? Therefore, the builder mode is used to separate object construction.Class ccar{Public:Void what (){Printf ("% s", szwhat );} Void drive (){Printf ("driving! /N ");} Char szwhat [2, 100];}; // Car builderClass ccarbuilder{Pub

: Program code// Car. h# Include "tyre. H"Class ccar{Public:Ctyre;}; // Tyre. h# Include "car. H"Class ctyre{// Do something}; Program code// Company. h# Include "department. H"Class ccompany{Public:Cdepartment;}; // Tyre. h# Include "company. H"Class cdepartment{// Do something}; 5. Dependency)Dependency: it is a usage relationship, that is, the implementation of a class requires the assistance of another class. Therefore, try not to use bi

m_fPrice * 6 ;}}; class PriceContext {public: int m_iFlag; private: Car * m_cCar; public: PriceContext (Car * cCar): m_cCar (cCar) {// this-> m_cCar = cCar;} float GetPriceContext () {m_cCar-> m_fPrice = 10000; return (m_cCar-> GetPrice () ;}; int main () {float fPrice = 0.0; int iTag = 0; cout > ITag; PriceContext * priceContext; switch (iTag) {case 1: pri

There are two main classes Ifstream,ofstream,fstream for file operations, such as the following1. Read operation#include usingname space Std;intMain () {Ccar car; //Initialize a Car objectIfstreaminch; inch. Open ("Test.txt"Ios::inch);//Open File if(!inch) {cout"Open File Error"Endl; return 0; } while(inch. Read (Char*) car,sizeof(car))) {//read sizeof (car) bytes from file and write into memory carcout Endl; }In.close ();}2. Write operat

instance: Acar method constructfunctionACar = new car ();Bcar = new car ();Ccar = new car ();Car.constructfunction () attempts to construct a defined method through a class or a class's prototype access is invalid and will errorCar.prototype. Constructfunction () attempts to construct a defined method through a class or a class's prototype access is invalid and will errorAcar.constructfunction = function () {Echo (' This a new constructfunction ');}A

prototypes, only through instance access, but also through instances. The following code attempts to modify the instance: The method of Constructfunction ACar = new car ();Bcar = new car ();Ccar = new car ();Car.constructfunction () a method that attempts to access a constructed definition through a class or a class's prototype is invalid and can cause an errorCar.prototype.. Constructfunction () a method that attempts to access a constructed definit

Asfrplus directory. The following are its basic uses: Enter the Asfrplus directory, type: ./ASFR Mms://www.hehe.com/***.wma-t 3Download ***.wma with 3 threads./asfr-p http://proxy:8080 mms://www.hehe.com/***.wmaUse proxy server proxy:8080 download ***.wma./ASFR Mms://www.hehe.com/***.wma-tForced to download ***.wma with MMST protocolExit Program: Ctrl+break Size:47KBDownload:Http://www.5anet.com/software/asfrplus.tgz=========================================================1) Graphics Interface

downloading:#tar ZXVF d4x-2.5.0final.tar.gz#cd d4x-2.5.0final#./configure#make#make InstallAfter successful installation, run the "d4x" command to run directly. It is shown in interface 3.2. Use and SettingsD4x is very simple to use, when downloading a file, simply enter the download file address in the "Add New Download Task" dialog box. If you need a user name and password, you can enter it directly in this dialog box.Into. To schedule a download, you can set the download time in the time opt

Classes with this feature are called abstract classes, which protect constructors from being accessible by quilt classes, while private constructors can only use static declarations in this class to make the entire class have only one instance, called singleon )/ Single-piece example: // Singleon 5. Multi-Inheritance Avoid multiple functions as much as possible, which may easily lead to ambiguity and waste of memory space and efficiency. We recommend that you use the idea of inheriting a spec

using it. I think this is not very good, so I mainly transplanted appweb. it may be that Chinese people use it less and only see one post. for more information, there are still many problems and SSL is not supported. later, I read the English document, read the relevant questions on the appweb forum, and finally solved a lot of questions. I successfully transplanted them to at91rm9200dk + linux. in order to avoid detours, the original is a rare one. Today, it is suspended. I think it should be

Introduction: This is the PHP getopt function of the detailed page, introduced and PHP, related knowledge, skills, experience, and some PHP source code and so on. class= ' pingjiaf ' frameborder= ' 0 ' src= ' http://biancheng.dnbcw.info/pingjia.php?id=336873 ' scrolling= ' no ' > Short parameters It returns an array containing command-line arguments. For example, to get the value of-a-b and-C, you can do this: $arguments = getopt ("A:B:C:"); You can run the script in the following way (there

DragonBones2.2 so that its direct output let CCAR Mature the supported resource formats.Ccarmature's ProblemCcarmature transplant is not perfect, the main problems are as follows: Frame-wise animation is not supported; Poor support for nested bones; No key frame events are implemented; It is not supported to replace a bone with frame-wise animation; Fully optimized for cocos2d-x, incompatible with Dragonbones API; Cocos2d