diff --git a/src/compute/SimpleCalculator.java b/src/compute/SimpleCalculator.java
index 38e6ade..6c41e69 100644
--- a/src/compute/SimpleCalculator.java
+++ b/src/compute/SimpleCalculator.java
@@ -13,7 +13,7 @@ public class SimpleCalculator {
     private double memory; // Memory for M+, M-, MR, and MC functionality
 
     public SimpleCalculator() {
-        frame = new JFrame("简单计算器");
+        frame = new JFrame("简单计算器pjj");
         inputField = new JTextField();
         inputField.setEditable(false);
         inputField.setHorizontalAlignment(SwingConstants.RIGHT);