el = pTemp->next;
pTemp->next = pDel->next;
delete pDel;

m_listLength--;

return true;
}

//得到指定位置节点的指针。
bool LinkList::GetNode(int position, LNode **node) {
LNode *pTemp = NULL;
int curPos = -1;

pTemp = m_pList;
while (pTemp != NULL) {
  curPos++;
  if (curPos == position)
   break;
  pTemp = pTemp->next;
}

if (curPos != position) {
  return false;
}

*node = pTemp;

return true;
}

//定位与指定数据相等的数据节点。
//如果在当前链表中已经存在该数据则返回该数据节点的索引号。
//若不存在这样的节点则返回0。
//节点索引从0开始到listLength。
int LinkList::LocateElem(int elem) {
LNode *pTemp = NULL;
int curIndex = 1;

pTemp = m_pList->next;
while ((pTemp != NULL) && (pTemp->data != elem)) {
  pTemp = pTemp->next;
  curIndex++;
}

if (pTemp == NULL) {
  return 0;
}

return curIndex;
}

/*
int main(){
LinkList l;

l.InsertNode(1, 10);
l.InsertNode(2, 20);
l.InsertNode(3, 30);
l.InsertNode(4, 40);
cout << l.GetLength() << endl;

int dataTemp = 0;
for (int i = 1; i <= l.GetLength(); i++) {
  l.GetNodeData(i, dataTemp);
  cout << dataTemp << endl;
}

if (l.SetNodeData(3, 50)) {
  cout <<"DONE/n";
} else {
  cout << "Failed/n";
}

for (i = 1; i <= l.GetLength(); i++) {
  l.GetNodeData(i, dataTemp);
  cout << dataTemp << endl;
}

if (l.DeleteNode(4)) {
  cout <<"DONE/n";
} else {
  cout << "Failed/n";
}

for (i = 1; i <= l.GetLength(); i++) {
  l.GetNodeData(i, dataTemp);
  cout << dataTemp << endl;
}

cout << l.LocateElem(50) << endl;
return 0;
}
*/