如果我有多个级别的对象包含(一个对象定义并实例化另一个对象,该对象定义和实例化另一个对象..),是否可以访问上层包含对象变量和函数?
例子:
class CObjectOne
{
public:
CObjectOne::CObjectOne() { Create(); };
void Create();
std::vector<ObjectTwo>vObejctsTwo;
int nVariableOne;
}
bool CObjectOne::Create()
{
CObjectTwo ObjectTwo(this);
vObjectsTwo.push_back(ObjectTwo);
}
class CObjectTwo
{
public:
CObjectTwo::CObjectTwo(CObjectOne* pObject)
{
pObjectOne = pObject;
Create();
};
void Create();
CObjectOne* GetObjectOne(){return pObjectOne;};
std::vector<CObjectTrhee>vObjectsTrhee;
CObjectOne* pObjectOne;
int nVariableTwo;
}
bool CObjectTwo::Create()
{
CObjectThree ObjectThree(this);
vObjectsThree.push_back(ObjectThree);
}
class CObjectThree
{
public:
CObjectThree::CObjectThree(CObjectTwo* pObject)
{
pObjectTwo = pObject;
Create();
};
void Create();
CObjectTwo* GetObjectTwo(){return pObjectTwo;};
std::vector<CObjectsFour>vObjectsFour;
CObjectTwo* pObjectTwo;
int nVariableThree;
}
bool CObjectThree::Create()
{
CObjectFour ObjectFour(this);
vObjectsFour.push_back(ObjectFour);
}
main()
{
CObjectOne myObject1;
}
说,从CObjectThree我需要访问CObjectOne中的nVariableOne。我想这样做:
int nValue = vObjectThree[index].GetObjectTwo()->GetObjectOne()->nVariable1;
但是,在编译并运行我的应用程序后,我得到Memory Access Violation error。
- 上面的代码有什么问题(它是示例,可能包含拼写错误)?
- 我必须动态创建对象而不是静态创建对象吗?
- 有没有其他方法可以从包含对象中实现存储在包含对象中的变量?