diff --git a/main.go b/main.go
index fbf81c4a3..7ec89f6a4 100644
--- a/main.go
+++ b/main.go
@@ -187,7 +187,7 @@ func handleConn(c net.Conn) {
 			return
 		}
 		fmt.Println("read data：", hex.EncodeToString(buffer[:n]))
-		data := "ok"
+		data := "1e00350200ff5000011b401b59415501oa2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2d2dff"
 		c.Write([]byte(data))
 		fmt.Println("write data: ", data)
 	}