diff --git a/priority_queue/priority_queue.go b/priority_queue/priority_queue.go
index fea7759..c9f2600 100644
--- a/priority_queue/priority_queue.go
+++ b/priority_queue/priority_queue.go
@@ -72,84 +72,32 @@ func (pq *PriorityQueue) Push(v interface{}) {
 
 	node := new(Node)
 	node.value = v
+	pq.size++
 
 	if pq.node == nil {
 		//创建索引
-		index := new(Index)
-		index.nlen = 1
-		index.node = node
-
-		pq.index = index
 		pq.node = node
-
 		return
 	}
-	// find the node of index to start
-	idx := pq.index
 
-	for {
-
-		if idx.next == nil {
-			break
-		}
-
-		if pq.comparator(v, idx.next.node.value) > 0 {
-			break
-		}
-
-		idx = idx.next
-	}
-
-	cur := idx.node
+	cur := pq.node
 
 	//cur := pq.node
 	if pq.comparator(v, pq.node.value) > 0 {
 		pq.node = node
 		node.next = cur
-
-		pq.index.node = pq.node
-		pq.index.nlen++
-
 		// cur.prev = node
 		return
 	}
 
 	for i := 0; cur.next != nil; i++ {
 
-		if i >= pq.indexlimit {
-
-			if idx.next != nil && idx.next.nlen < pq.indexlimit {
-				idx.next.nlen += idx.nlen - pq.indexlimit
-				idx.nlen = pq.indexlimit
-				idx.next.node = cur
-			} else {
-				index := new(Index)
-				index.node = cur
-				index.nlen = idx.nlen - pq.indexlimit
-				index.next = idx.next
-
-				idx.next = index
-				idx.nlen = pq.indexlimit
-				idx = index
-				i = 0
-			}
-
-		}
-
 		if pq.comparator(v, cur.next.value) > 0 {
 			temp := cur.next
 			cur.next = node
 			node.next = temp
 			// node.prev = cur
 			// temp.prev = node
-
-			idx.nlen++
-
-			// if pq.index.nlen >= pq.indexlimit {
-			// 	// 分裂
-
-			// }
-
 			return
 		}
 
@@ -160,8 +108,6 @@ func (pq *PriorityQueue) Push(v interface{}) {
 	cur.next = node
 
 	// node.prev = cur
-	pq.size++
-	idx.nlen++
 
 }