Use of the 7--c++ class

Once you have defined a class, you can create an object of that class just as you would declare a simple variable with a type of int, double, and so on, calledinstantiation of a class。 The definition of a class is actually defined as a type that the class does not receive or store specific values, only as a "blueprint" for generating concrete objects.The system allocates storage space for objects only after the class is instantiated and the object is created (a variable that declares the class).  

Computer.hclass Computer//class definition {  private:             char brand[20];            float price; Public:             void print ();             void Setbrand (const char * sz);             void Setprice (float PR); };  

　　

#include "computer.h"//contains class definition #include <iostream>using namespace std;   void computer: Implementation of the:p rint ()//member function {             cout << branding: << brand << Endl;             cout << "Prices:" << price << Endl;  } void Computer::setbrand (char * sz) {             strcpy (brand, SZ);//String copy}  void Computer::setprice (float PR) {             price = PR; } #include "Computer.h"//defines class computer int main ()//main function {             computer COM1;//Declares Computer class object (or class variable) COM1 com1            . Setbrand ("Lenovo");//Call the public member function Setbrand set branding brand             com1. Setprice (8000); Call public member function Setprice set brand price             com1.print ();//Information output             return 0;}  

　　

Use of the 7--c++ class