m_pMsg已经被delete,怎么还是可被赋值

[pan2008]

struct stcMsg*pMsg=m_pMsg;

while (m_pMsg!=NULL)
{
pMsg=m_pMsg->pNext;

delete m_pMsg;

m_pMsg=pMsg; //m_pMsg已经被delete,怎么还是可被赋值
}

pMsg=0;

[lifanxi]

delete m_pMsg是把m_pMsg所指向的内存空间释放，并不是把m_pMsg所占有的空间释放，delete后m_mMsg中还是存着原来的值，当然也可以再被赋值。