int GetThirdNodeIndex(Node **ppNs, Node * pN0, Node * pN1) *function£ºÔڱ䳤ģʽϹ¹ÔìMemPool¶ÔÏó *parameters£º - [i]Node **ppNs£ºchunkµÄ´óС,Æä·¶Î§[MIN_CHUNK_SIZE, MAX_CHUNK_SIZE] - [i]Node * pN0£ºchunkµÄ´óС,Æä·¶Î§[MIN_CHUNK_SIZE, MAX_CHUNK_SIZE] - [i]Node * pN1£ºchunkµÄ´óС,Æä·¶Î§[MIN_CHUNK_SIZE, MAX_CHUNK_SIZE] *return value£ºÎÞ
void ReplaceNode(Element * pElem, Node * pOld, Node * pNew)**