diff --git a/platformapi/ebaiapi/im.go b/platformapi/ebaiapi/im.go
index df586034..1ddac9d8 100644
--- a/platformapi/ebaiapi/im.go
+++ b/platformapi/ebaiapi/im.go
@@ -24,6 +24,12 @@ const (
 	ImStatusOpen  = 1  //开启
 	ImStatusClose = -1 //关闭
 
+	//10(用户)、20(骑手)、30(商家)、32（连锁账号登录）、95（系统）
+	SenderTypeUser                = "10"
+	SenderTypeRider               = "20"
+	SenderTypeBusiness            = "30"
+	SenderTypeChainedAccountLogin = "32"
+	SenderTypeSystem              = "95"
 )
 
 // BusinessSendMsgReq im发送消息
diff --git a/platformapi/mtwmapi/im_test.go b/platformapi/mtwmapi/im_test.go
index a679ca93..3fd7dfc3 100644
--- a/platformapi/mtwmapi/im_test.go
+++ b/platformapi/mtwmapi/im_test.go
@@ -189,8 +189,12 @@ func TestNew2(t *testing.T) {
 	//fmt.Println(reflect.TypeOf(file3))
 	//fmt.Println(reflect.TypeOf(file2))
 
-	var n = 0
-	fmt.Println(n)
-	fmt.Println(reflect.TypeOf(n))
+	str := "20235760123"
+
+	fmt.Println(str[:2])
+
+	//var n = 0
+	//fmt.Println(n)
+	//fmt.Println(reflect.TypeOf(n))
 
 }