diff --git a/tree/tried/tried.go b/tree/tried/tried.go
index 3253131..fb93ebc 100644
--- a/tree/tried/tried.go
+++ b/tree/tried/tried.go
@@ -47,11 +47,11 @@ func (tried *Tried) wordIndex(w byte) uint {
 	return uint(w) - 'a'
 }
 
-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)
@@ -78,11 +78,11 @@ 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
 		}
@@ -91,7 +91,7 @@ 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 73df52d..1713c87 100644
--- a/tree/tried/tried_test.go
+++ b/tree/tried/tried_test.go
@@ -6,75 +6,75 @@ import (
 	"github.com/Pallinder/go-randomdata"
 )
 
-// func TestTried_PutAndGet1(t *testing.T) {
-// 	tried := New()
+func TestTried_PutAndGet1(t *testing.T) {
+	tried := New()
 
-// 	tried.Put(("asdf"))
-// 	tried.Put(("hehe"), "hehe")
-// 	tried.Put(("xixi"), 3)
+	tried.Put(("asdf"))
+	tried.Put(("hehe"), "hehe")
+	tried.Put(("xixi"), 3)
 
-// 	var result interface{}
+	var result interface{}
 
-// 	result = tried.Get("asdf")
-// 	if result != tried {
-// 		t.Error("result should be 3")
-// 	}
+	result = tried.Get("asdf")
+	if result != tried {
+		t.Error("result should be 3")
+	}
 
-// 	result = tried.Get("xixi")
-// 	if result != 3 {
-// 		t.Error("result should be 3")
-// 	}
+	result = tried.Get("xixi")
+	if result != 3 {
+		t.Error("result should be 3")
+	}
 
-// 	result = tried.Get("hehe")
-// 	if result != "hehe" {
-// 		t.Error("result should be hehe")
-// 	}
+	result = tried.Get("hehe")
+	if result != "hehe" {
+		t.Error("result should be hehe")
+	}
 
-// 	result = tried.Get("haha")
-// 	if result != nil {
-// 		t.Error("result should be nil")
-// 	}
+	result = tried.Get("haha")
+	if result != nil {
+		t.Error("result should be nil")
+	}
 
-// 	result = tried.Get("b")
-// 	if result != nil {
-// 		t.Error("result should be nil")
-// 	}
-// }
+	result = tried.Get("b")
+	if result != nil {
+		t.Error("result should be nil")
+	}
+}
 
-// func TestTried_Traversal(t *testing.T) {
-// 	tried := New()
-// 	tried.Put("asdf")
-// 	tried.Put(("abdf"), "ab")
-// 	tried.Put(("hehe"), "hehe")
-// 	tried.Put(("xixi"), 3)
+func TestTried_Traversal(t *testing.T) {
+	tried := New()
+	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 {
-// 		// t.Error(idx, v)
-// 		result = append(result, v)
-// 		return true
-// 	})
+	var result []interface{}
+	tried.Traversal(func(idx uint, v interface{}) bool {
+		// t.Error(idx, v)
+		result = append(result, v)
+		return true
+	})
 
-// 	if result[0] != "ab" {
-// 		t.Error(result[0])
-// 	}
+	if result[0] != "ab" {
+		t.Error(result[0])
+	}
 
-// 	if result[1] != tried {
-// 		t.Error(result[1])
-// 	}
+	if result[1] != tried {
+		t.Error(result[1])
+	}
 
-// 	if result[2] != "hehe" {
-// 		t.Error(result[2])
-// 	}
+	if result[2] != "hehe" {
+		t.Error(result[2])
+	}
 
-// 	if result[3] != 3 {
-// 		t.Error(result[3])
-// 	}
-// }
+	if result[3] != 3 {
+		t.Error(result[3])
+	}
+}
 
 func BenchmarkTried_Put(b *testing.B) {
 
-	var data []TriedString
+	var data []string
 	b.N = 1000000
 	count := 10
 
@@ -84,7 +84,7 @@ func BenchmarkTried_Put(b *testing.B) {
 			char := randomdata.Number(0, 26) + 'a'
 			content = append(content, rune(byte(char)))
 		}
-		data = append(data, TriedString(string(content)))
+		data = append(data, (string(content)))
 	}
 
 	b.ResetTimer()
@@ -99,7 +99,7 @@ func BenchmarkTried_Put(b *testing.B) {
 
 func BenchmarkTried_Get(b *testing.B) {
 
-	var data []TriedString
+	var data []string
 	b.N = 1000000
 	count := 10
 
@@ -109,7 +109,7 @@ func BenchmarkTried_Get(b *testing.B) {
 			char := randomdata.Number(0, 26) + 'a'
 			content = append(content, rune(byte(char)))
 		}
-		data = append(data, TriedString(content))
+		data = append(data, string(content))
 	}
 
 	b.N = b.N * count