diff --git a/priority_list/priority_list.go b/priority_list/priority_list.go
index f42eea3..943af0f 100644
--- a/priority_list/priority_list.go
+++ b/priority_list/priority_list.go
@@ -88,6 +88,52 @@ func (pl *PriorityList) Clear() {
 	pl.size = 0
 }
 
+// GetCompare 获取比较的节点 compare > 11这个节点小的值 [15,12,9,8,6,1] = 9
+func (pl *PriorityList) GetCompare(cNode INode) INode {
+	cur := pl.head
+	for cur != nil {
+		if !cur.Compare(cNode) {
+			return cur
+		}
+		cur = cur.GetNext()
+	}
+	return nil
+}
+
+// GetCompareReverse 逆序获取比较的节点 compare > 11这个节点大的值 [15,12,9,8,6,1] = 12
+func (pl *PriorityList) GetCompareReverse(cNode INode) INode {
+	cur := pl.tail
+	for cur != nil {
+		if cur.Compare(cNode) {
+			return cur
+		}
+		cur = cur.GetPrev()
+	}
+	return nil
+}
+
+// ForEach 顺序遍历
+func (pl *PriorityList) ForEach(eachfunc func(INode) bool) {
+	cur := pl.head
+	for cur != nil {
+		if !eachfunc(cur) {
+			break
+		}
+		cur = cur.GetNext()
+	}
+}
+
+// ForEachReverse 逆遍历
+func (pl *PriorityList) ForEachReverse(eachfunc func(INode) bool) {
+	cur := pl.tail
+	for cur != nil {
+		if !eachfunc(cur) {
+			break
+		}
+		cur = cur.GetPrev()
+	}
+}
+
 // Get 获取索引长度
 func (pl *PriorityList) Get(idx int) INode {
 	if idx >= pl.size {
diff --git a/priority_list/priority_list_test.go b/priority_list/priority_list_test.go
index 5816675..7531651 100644
--- a/priority_list/priority_list_test.go
+++ b/priority_list/priority_list_test.go
@@ -53,25 +53,33 @@ func TestPriority(t *testing.T) {
 		t.Error("Remove error current is ", pl.String(), pl.Size())
 	}
 
-	t.Log("size is", pl.Size())
 	size := pl.Size()
 	for i := 0; i < size; i++ {
 		pl.RemoveReverseIndex(0)
-		t.Log(i)
 	}
 	if pl.String() != "[]" || pl.Size() != 0 {
 		t.Error("Remove error current is ", pl.String(), pl.Size())
 	}
 
 	pl.Insert(NewNodeInt(6))
-	pl.Insert(NewNodeInt(5))
-	pl.Insert(NewNodeInt(7))
+	pl.Insert(NewNodeInt(1))
+	pl.Insert(NewNodeInt(9))
+	pl.Insert(NewNodeInt(15))
 	pl.Insert(NewNodeInt(12))
 	pl.Insert(NewNodeInt(8))
 
+	if pl.GetCompare(NewNodeInt(11)).GetValue() != 9 {
+		t.Error(pl.String(), pl.GetCompare(NewNodeInt(11)).GetValue())
+	}
+
+	if pl.GetCompareReverse(NewNodeInt(11)).GetValue() != 12 {
+		t.Error(pl.String(), pl.GetCompareReverse(NewNodeInt(11)).GetValue())
+	}
+
 	pl.Clear()
 
 	if pl.String() != "[]" || pl.Size() != 0 {
 		t.Error("Remove error current is ", pl.String(), pl.Size())
 	}
+
 }