diff --git a/redis.pb.go b/redis.pb.go
index e5fec8e..a445657 100644
--- a/redis.pb.go
+++ b/redis.pb.go
@@ -203,7 +203,7 @@ func (m *GetStringResponse) GetValue() string {
 
 // 设置key响应结构
 type SetResponse struct {
-	Ret              *uint64 `protobuf:"varint,1,opt,name=ret" json:"ret,omitempty"`
+	Ret              *string `protobuf:"bytes,1,opt,name=ret" json:"ret,omitempty"`
 	XXX_unrecognized []byte  `json:"-"`
 }
 
@@ -211,16 +211,16 @@ func (m *SetResponse) Reset()         { *m = SetResponse{} }
 func (m *SetResponse) String() string { return proto.CompactTextString(m) }
 func (*SetResponse) ProtoMessage()    {}
 
-func (m *SetResponse) GetRet() uint64 {
+func (m *SetResponse) GetRet() string {
 	if m != nil && m.Ret != nil {
 		return *m.Ret
 	}
-	return 0
+	return ""
 }
 
 // 删除key响应结构
 type DelResponse struct {
-	Ret              *uint64 `protobuf:"varint,1,opt,name=ret" json:"ret,omitempty"`
+	Ret              *string `protobuf:"bytes,1,opt,name=ret" json:"ret,omitempty"`
 	XXX_unrecognized []byte  `json:"-"`
 }
 
@@ -228,11 +228,11 @@ func (m *DelResponse) Reset()         { *m = DelResponse{} }
 func (m *DelResponse) String() string { return proto.CompactTextString(m) }
 func (*DelResponse) ProtoMessage()    {}
 
-func (m *DelResponse) GetRet() uint64 {
+func (m *DelResponse) GetRet() string {
 	if m != nil && m.Ret != nil {
 		return *m.Ret
 	}
-	return 0
+	return ""
 }
 
 func init() {
diff --git a/redis.proto b/redis.proto
index 6da9bf0..d41846f 100644
--- a/redis.proto
+++ b/redis.proto
@@ -40,12 +40,12 @@ message GetStringResponse {
 
 // 设置key响应结构
 message SetResponse {
-    uint64 ret = 1;
+    string ret = 1;
 }
 
 // 删除key响应结构
 message DelResponse {
-    uint64 ret = 1;
+    string ret = 1;
 }
 // rpc方法
 service RedisService {
diff --git a/string.go b/string.go
index faacca1..0e337a3 100644
--- a/string.go
+++ b/string.go
@@ -30,7 +30,7 @@ func GetString(key string, url ...string) (string, error) {
 }
 
 //设置
-func Set(key, value string, ttl string, url ...string) (uint64, error) {
+func Set(key, value string, ttl string, url ...string) (string, error) {
 
 	conn, _, err := Conn(url...)
 
@@ -53,7 +53,7 @@ func Set(key, value string, ttl string, url ...string) (uint64, error) {
 }
 
 //设置
-func Del(key string, url ...string) (uint64, error) {
+func Del(key string, url ...string) (string, error) {
 
 	conn, _, err := Conn(url...)
 
diff --git a/string_test.go b/string_test.go
index 549985c..4a8b19c 100644
--- a/string_test.go
+++ b/string_test.go
@@ -15,16 +15,16 @@ import (
 
 func Test_Set(t *testing.T) {
 
-	c, err := Set("test", "1111", 7200)
+	c, err := Set("test", "1111", "7200")
 	t.Log(c)
 	t.Log(err)
 
 }
 
-// func Test_Del(t *testing.T) {
+func Test_Del(t *testing.T) {
 
-// 	c, err := Del("test")
-// 	t.Log(c)
-// 	t.Log(err)
+	c, err := Del("test")
+	t.Log(c)
+	t.Log(err)
 
-// }
+}