From d7760f4395e63e50db4388c3c56200d2735f6d30 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E9=BB=84=E5=9F=B9=E6=AF=85?= <2642034697@qq.com>
Date: Sat, 27 Sep 2025 10:46:49 +0800
Subject: [PATCH] 123

---
 src/MathExamGenerator.java | 1 +
 1 file changed, 1 insertion(+)

diff --git a/src/MathExamGenerator.java b/src/MathExamGenerator.java
index d481f19..956555a 100644
--- a/src/MathExamGenerator.java
+++ b/src/MathExamGenerator.java
@@ -62,6 +62,7 @@ public class MathExamGenerator {
         String input = reader.readLine();
 
         if (input == null || input.trim().isEmpty()) {
+            System.out.println("输入不能为空，请重新输入");
             return;
         } else if (input.equals("exit")) {
             isRunning = false;