What can "_ declspec" in VC do? (2)-add attributes to the class

Attribute is an indispensable element in Object-Oriented Programming. A generalized attribute is used to describe the state of an object. The attribute mentioned in this article is narrow. It refers to the ability to use the "=" operator to perform get or set operations on a data of the class and to control the get and Set permissions.
First look at the Code:

 #include <IOSTREAM>
#include <map>
#include <string>
#include <CONIO.H>
using namespace std;

class propertytest
{
    int m_xvalue;
    int m_yvalues[100];
    map<string,string> m_zvalues;
public:
    __declspec(property(get=GetX, put=PutX)) int x;
    __declspec(property(get=GetY, put=PutY)) int y[];
    __declspec(property(get=GetZ, put=PutZ)) int z[];

    int GetX()
    {
        return m_xvalue;
    };
    void PutX(int x)
    {
        m_xvalue = x;
    };
    
    int GetY(int n)
    {
        return m_yvalues[n];
    };

    void PutY(int n,int y)
    {
        m_yvalues[n] = y;
    };

    string GetZ(string key)
    {
        return m_zvalues[key];
    };

    void PutZ(string key,string z)
    {
        m_zvalues[key] = z;
    };

};

int main(int argc, char* argv[])
{
    propertytest test;
    test.x = 3;
    test.y[3] = 4;
    test.z["aaa"] = "aaa";
    std::cout << test.x <<std::endl;
    std::cout << test.y[3] <<std::endl;
    std::cout << test.z["aaa"] <<std::endl;

    getch();
    return 0;
}

Related Articles:

What Can _ declspec in VC do?-Preface

Chapter 1 What Can "_ declspec" in VC do? (1)-define interfaces

Chapter 2 What Can "_ declspec" in VC do? (2)-add attributes to the class