diff --git a/bot_test.go b/bot_test.go
index 1e1a72d..da5eadb 100644
--- a/bot_test.go
+++ b/bot_test.go
@@ -39,6 +39,7 @@ 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 28a6588..6481143 100644
--- a/message.go
+++ b/message.go
@@ -647,3 +647,7 @@ func (a AppMessageData) IsFile() bool {
 func (m *Message) IsComeFromGroup() bool {
 	return m.IsSendByGroup() || strings.HasPrefix(m.ToUserName, "@@")
 }
+
+func (m *Message) String() string {
+	return fmt.Sprintf("<%s:ID:%s>", m.MsgType, m.MsgId)
+}