C++中類的資料成員在記憶體中時如何分佈的，有繼承，虛擬繼承等情況下又是怎麼分佈的？在VS編譯器中可以檢視。

原始碼如下：

#include<iostream>
using namespace std;

class CFurniture
{
public:
    CFurniture(){
        m_nPrice = 0;
    }
    ~CFurniture(){
        printf("virtual ~CFurniture()\r\n");
    }
    virtual int GetPrice(){
        return m_nPrice;
    }
protected
 
:
    int m_nPrice;
};

class Csofa:virtual public CFurniture
{
public:
    Csofa(){
        m_nColor = 1;
        m_nColor = 2;
    }
    ~Csofa(){
        printf("virtual ~Csofa()\r\n");
    }
    virtual int GetColor(){
        return m_nColor;
    }
    virtual int SitDown(){
        return printf("Sit Down and rest your legs\r\n"
 
);
    }

protected:
    int m_nColor;
};

class CBed : virtual public CFurniture
{
public:
    CBed(){
        m_nPrice = 3;
        m_nLength = 4;
        m_nWidth = 5;
    }
    ~CBed(){
        printf("virtual ~CBed()\r\n");
    }
    virtual int GetArea(){
        return m_nLength*m_nWidth;
    }
    virtual
 
 int Sleep(){
        return printf("go to sleep\r\n");
    }

protected:
    int m_nLength;
    int m_nWidth;
};

class CSofaBed : public Csofa,public CBed
{
public:
    CSofaBed(){
        m_nHeight = 6;
    }
    ~CSofaBed(){
        printf("virtual ~CSoftBed()\r\n");
    }
    virtual int SitDown(){
        return printf("Sir Down on the sofa bed\r\n");
    }
    virtual int Sleep(){
        return printf("go to sleep on the sofa bed\r\n");
    }
    virtual int GetHeight(){
        return m_nHeight;
    }

protected:
    int m_nHeight;
};



void main(){
    CSofaBed SofaBed;
    CFurniture* pFunniture = &SofaBed;
    Csofa* pSofa = &SofaBed;
    CBed* pBed = &SofaBed;
}

1、開啟 Visual Studio Tools 中的 VS2013 開發人員命令提示

2、切換到.cpp檔案所在的目錄

3、輸入命令：cl -d1reportSingleClassLayout[類名] [檔名].cpp

4、也可以在編輯介面中，右擊[檔名].cpp->屬性–>配置屬性–>C/C++–>命令列：其他選項，新增：/d1reportSingleClassLayout[類名] [檔名].cpp

5、編譯，會在輸出欄中顯示上述資訊。