多字符串队列

typedef struct _NAME_NODE_{
_NAME_NODE_ * next;
TCHAR * name;
TCHAR * tip;
TCHAR * data;
}NAME_NODE;


class Cdata
{
public:
Cdata()
{
m_phead = NULL;
m_ptail = NULL;
m_count = 0;
}
~Cdata()
{
clear();
}

NAME_NODE * createOne(LPCTSTR name, LPCTSTR tip, LPCTSTR data)
{
NAME_NODE * p = (NAME_NODE *)malloc(sizeof(NAME_NODE));
p->next = NULL;
p->data = (TCHAR *)malloc((lstrlen(data)+4)*sizeof(TCHAR));
lstrcpy(p->data, data);
p->name = (TCHAR *)malloc((lstrlen(name)+4)*sizeof(TCHAR));

lstrcpy(p->name, name);
p->tip = (TCHAR *)malloc((lstrlen(tip)+4)*sizeof(TCHAR));
lstrcpy(p->tip, tip);
return p;
}

void clearOne(NAME_NODE ** p)
{
free((*p)->data);
free((*p)->name);
free((*p)->tip);
free((*p));
}

void changeNodeName(NAME_NODE * p, LPCTSTR name)
{
free(p->name);
p->name = (TCHAR *)malloc((lstrlen(name)+4)*sizeof(TCHAR));
lstrcpy(p->name, name);
}

void changeNodeTip(NAME_NODE * p, LPCTSTR tip)
{
free(p->tip);
p->tip = (TCHAR *)malloc((lstrlen(tip)+4)*sizeof(TCHAR));
lstrcpy(p->tip, tip);
}

void changeNodeData(NAME_NODE * p, LPCTSTR data)
{