拷贝构造函数

[Microsoft777]

声明一个结构体

struct kNode
{
int nData;
kNode* m_pNext;
};

声明一个类

class kPorker
{
private:
kNode *m_pTop;
};

而且结构体都是动态申请的
我应该怎么样写拷贝构造函数呢

kNode(const kNode &m_refNode)
{
this->nData = m_refNode->nData;
this->m_pNext = m_refNode->m_pNext;
}

kPorker(const kPorker &m_refPorker)
{
this->m_pTop = m_refPorker.m_pTop;
}

这样写好象不对
那应该怎么样写呢
请指教

[AlwaysSLH]

kNode(const   kNode   &m_refNode) 
{ 
          this-> nData   =   m_refNode.nData; 
          this-> m_pNext   =   m_refNode.m_pNext; 
} 

kPorker(const   kPorker   &m_refPorker) 
{ 
        this-> m_pTop   =   m_refPorker.m_pTop; 
}