diff --git a/client.go b/client.go
index 0b5018c..7c1ccb7 100644
--- a/client.go
+++ b/client.go
@@ -11,10 +11,15 @@ import (
 	"sync"
 
 	"github.com/gin-gonic/gin"
+	"github.com/google/uuid"
 )
 
 // Callback 发送代理连接获取内容后的回调函数
-type Callback func(tid, content string)
+type Callback struct {
+	label string
+	hash  string
+	Do    func(tid, content string)
+}
 
 // Client 客户端
 type Client struct {
@@ -36,9 +41,25 @@ type Label struct {
 	cli   *Client
 }
 
+// GetHash 根据label获取hash路径
+func (l *Label) GetHash(label string) string {
+	if cb, ok := l.cli.register.Load(label); ok {
+		return cb.(Callback).hash
+	}
+	return ""
+}
+
+// GetLabel 根据hash获取路径label
+func (l *Label) GetLabel(hash string) string {
+	if cb, ok := l.cli.register.Load(hash); ok {
+		return cb.(Callback).label
+	}
+	return ""
+}
+
 // Open 缓存了Label值. 每次调用少了label传参
 func (l *Label) Open(urlstr string) (bodyRes string, ok bool) {
-	return l.cli.open(l.label, urlstr)
+	return l.cli.Open(l.label, urlstr)
 }
 
 // GetPort Get return port string. default random.
@@ -62,15 +83,23 @@ func (cli *Client) SetHost(host string) {
 }
 
 // Register 注册基础信息
-func (cli *Client) Register(label string, callback Callback) *Label {
-	cli.register.Store(label, callback)
+func (cli *Client) Register(label string, callback func(tid, content string)) *Label {
+	cb := Callback{Do: callback, hash: uuid.New().String()}
+	if _, ok := cli.register.Load(label); ok {
+		log.Panic("label: ", label, " is exists")
+	}
+	cli.register.Store(label, cb)
+	cli.register.Store(cb.hash, cb)
 	l := &Label{label: label, cli: cli}
 	return l
 }
 
 // UnRegister 卸载注册基础信息
 func (cli *Client) UnRegister(label string) {
-	cli.register.Delete(label)
+	if cb, ok := cli.register.Load(label); ok {
+		cli.register.Delete(label)
+		cli.register.Delete(cb.(Callback).hash)
+	}
 }
 
 // Connect 连接初始化回调端口
@@ -94,7 +123,7 @@ func (cli *Client) Connect() {
 				callback := f.(Callback)
 				if tid, ok := c.GetPostForm("taskid"); ok {
 					content := c.PostForm("content")
-					callback(tid, content)
+					callback.Do(tid, content)
 				}
 			}
 		})
@@ -126,19 +155,18 @@ func (cli *Client) Disconnect() {
 	}
 }
 
-// open  请求完url后 调用不同label注册的回调函数
-func (cli *Client) open(label, urlstr string) (bodyRes string, ok bool) {
+// Open  请求完url后 调用不同label注册的回调函数
+func (cli *Client) Open(label, urlstr string) (bodyRes string, ok bool) {
 	// urlstr = "https://playerduo.com/api/playerDuo-service-v2/rip113?lang=en&deviceType=browser"
 
 	if cli.server == nil {
 		panic("client is not connect. Client.Connect() ? ")
 	}
 
-	if _, ok := cli.register.Load(label); ok {
+	if callback, ok := cli.register.Load(label); ok {
 		data := url.Values{}
 		data["url"] = []string{urlstr}
-		data["callback"] = []string{cli.host + ":" + cli.port + "/" + label}
-
+		data["callback"] = []string{cli.host + ":" + cli.port + "/" + callback.(Callback).hash}
 		resp, err := http.DefaultClient.PostForm(cli.chromeProxyAddr+"/task/put", data)
 		if err != nil {
 			panic(err)
diff --git a/go.mod b/go.mod
index 24eaec1..9d483d1 100644
--- a/go.mod
+++ b/go.mod
@@ -4,5 +4,6 @@ go 1.15
 
 require (
 	github.com/gin-gonic/gin v1.6.3
+	github.com/google/uuid v1.1.2
 	github.com/tebeka/selenium v0.9.9
 )
diff --git a/go.sum b/go.sum
index 7a484dc..92ef091 100644
--- a/go.sum
+++ b/go.sum
@@ -42,6 +42,8 @@ github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/
 github.com/google/martian v2.1.0+incompatible/go.mod h1:9I4somxYTbIHy5NJKHRl3wXiIaQGbYVAs8BPL6v8lEs=
 github.com/google/pprof v0.0.0-20181206194817-3ea8567a2e57/go.mod h1:zfwlbNMJ+OItoe0UupaVj+oy1omPYYDuagoSzA8v9mc=
 github.com/google/pprof v0.0.0-20190515194954-54271f7e092f/go.mod h1:zfwlbNMJ+OItoe0UupaVj+oy1omPYYDuagoSzA8v9mc=
+github.com/google/uuid v1.1.2 h1:EVhdT+1Kseyi1/pUmXKaFxYsDNy9RQYkMWRH68J/W7Y=
+github.com/google/uuid v1.1.2/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/googleapis/gax-go/v2 v2.0.4/go.mod h1:0Wqv26UfaUD9n4G6kQubkQ+KchISgw+vpHVxEJEs9eg=
 github.com/googleapis/gax-go/v2 v2.0.5/go.mod h1:DWXyrwAJ9X0FpwwEdw+IPEYBICEFu5mhpdKc/us6bOk=
 github.com/hashicorp/golang-lru v0.5.0/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8=