diff --git a/bot_test.go b/bot_test.go
index da5eadb..1e1a72d 100644
--- a/bot_test.go
+++ b/bot_test.go
@@ -39,7 +39,6 @@ func TestLogout(t *testing.T) {
 func TestMessageHandle(t *testing.T) {
 	bot := DefaultBot(Desktop)
 	bot.MessageHandler = func(msg *Message) {
-		fmt.Println(msg)
 		if msg.IsText() && msg.Content == "ping" {
 			msg.ReplyText("pong")
 		}
diff --git a/message.go b/message.go
index 6481143..678180e 100644
--- a/message.go
+++ b/message.go
@@ -649,5 +649,5 @@ func (m *Message) IsComeFromGroup() bool {
 }
 
 func (m *Message) String() string {
-	return fmt.Sprintf("<%s:ID:%s>", m.MsgType, m.MsgId)
+	return fmt.Sprintf("<%s:%s>", m.MsgType, m.MsgId)
 }