diff --git a/头罩视野slove/头罩视野/Views/PageTest.xaml.cs b/头罩视野slove/头罩视野/Views/PageTest.xaml.cs
index 274a3e3..69bbcc9 100644
--- a/头罩视野slove/头罩视野/Views/PageTest.xaml.cs
+++ b/头罩视野slove/头罩视野/Views/PageTest.xaml.cs
@@ -960,7 +960,7 @@ namespace 头罩视野.Views
 
             try
             {
-                string portName = "COM5";
+                string portName = "COM3";
                 int baudRate = 9600;
                 Parity parity = Parity.None;
                 int dataBits = 8;