diff --git a/tree/tried/tried.go b/tree/tried/tried.go
index 77f5a6c..2465ade 100644
--- a/tree/tried/tried.go
+++ b/tree/tried/tried.go
@@ -49,11 +49,11 @@ func (tried *Tried) wordIndex(w byte) uint {
 	}
 }
 
-func (tried *Tried) Put(words ObjectIndex, values ...interface{}) {
+func (tried *Tried) Put(words string, values ...interface{}) {
 	cur := tried.root
 	var n *Node
-	for i := uint(0); i < words.Size(); i++ {
-		w := words.WordIndex(i)
+	for i := 0; i < len(words); i++ {
+		w := tried.wordIndex(words[i])
 
 		if cur.data == nil {
 			cur.data = make([]*Node, tried.datasize)
@@ -80,11 +80,11 @@ func (tried *Tried) Put(words ObjectIndex, values ...interface{}) {
 
 }
 
-func (tried *Tried) Get(words ObjectIndex) interface{} {
+func (tried *Tried) Get(words string) interface{} {
 	cur := tried.root
 	var n *Node
-	for i := uint(0); i < words.Size(); i++ {
-		w := words.WordIndex(i) //TODO: 升级Index 函数
+	for i := 0; i < len(words); i++ {
+		w := tried.wordIndex(words[i]) //TODO: 升级Index 函数
 		if n = cur.data[w]; n == nil {
 			return nil
 		}
@@ -93,7 +93,7 @@ func (tried *Tried) Get(words ObjectIndex) interface{} {
 	return n.value
 }
 
-func (tried *Tried) Has(words ObjectIndex) bool {
+func (tried *Tried) Has(words string) bool {
 	return tried.Get(words) != nil
 }
 
diff --git a/tree/tried/tried_test.go b/tree/tried/tried_test.go
index 9ff23c3..51f9600 100644
--- a/tree/tried/tried_test.go
+++ b/tree/tried/tried_test.go
@@ -9,33 +9,33 @@ import (
 func TestTried_PutAndGet1(t *testing.T) {
 	tried := New()
 
-	tried.Put(TriedString("asdf"))
-	tried.Put(TriedString("hehe"), "hehe")
-	tried.Put(TriedString("xixi"), 3)
+	tried.Put(("asdf"))
+	tried.Put(("hehe"), "hehe")
+	tried.Put(("xixi"), 3)
 
 	var result interface{}
 
-	result = tried.Get(TriedString("asdf"))
+	result = tried.Get("asdf")
 	if result != tried {
 		t.Error("result should be 3")
 	}
 
-	result = tried.Get(TriedString("xixi"))
+	result = tried.Get("xixi")
 	if result != 3 {
 		t.Error("result should be 3")
 	}
 
-	result = tried.Get(TriedString("hehe"))
+	result = tried.Get("hehe")
 	if result != "hehe" {
 		t.Error("result should be hehe")
 	}
 
-	result = tried.Get(TriedString("haha"))
+	result = tried.Get("haha")
 	if result != nil {
 		t.Error("result should be nil")
 	}
 
-	result = tried.Get(TriedString("b"))
+	result = tried.Get("b")
 	if result != nil {
 		t.Error("result should be nil")
 	}
@@ -43,10 +43,10 @@ func TestTried_PutAndGet1(t *testing.T) {
 
 func TestTried_Traversal(t *testing.T) {
 	tried := New()
-	tried.Put(TriedString("asdf"))
-	tried.Put(TriedString("abdf"), "ab")
-	tried.Put(TriedString("hehe"), "hehe")
-	tried.Put(TriedString("xixi"), 3)
+	tried.Put("asdf")
+	tried.Put(("abdf"), "ab")
+	tried.Put(("hehe"), "hehe")
+	tried.Put(("xixi"), 3)
 
 	var result []interface{}
 	tried.Traversal(func(idx uint, v interface{}) bool {
@@ -74,12 +74,12 @@ func TestTried_Traversal(t *testing.T) {
 
 func BenchmarkTried_Put(b *testing.B) {
 
-	var data []TriedString
-	b.N = 10000
-	count := 1000
+	var data []string
+	b.N = 100000
+	count := 50
 
 	for i := 0; i < b.N; i++ {
-		data = append(data, TriedString(randomdata.RandStringRunes(10)+randomdata.RandStringRunes(4)))
+		data = append(data, (randomdata.RandStringRunes(10) + randomdata.RandStringRunes(4)))
 	}
 
 	b.ResetTimer()
@@ -94,12 +94,12 @@ func BenchmarkTried_Put(b *testing.B) {
 
 func BenchmarkTried_Get(b *testing.B) {
 
-	var data []TriedString
-	b.N = 10000
-	count := 1000
+	var data []string
+	b.N = 100000
+	count := 50
 
 	for i := 0; i < b.N; i++ {
-		data = append(data, TriedString(randomdata.RandStringRunes(10)+randomdata.RandStringRunes(4)))
+		data = append(data, (randomdata.RandStringRunes(10) + randomdata.RandStringRunes(4)))
 	}
 
 	b.N = b.N * count