From 258267436b10a125fbc488c9a2103ffd4efa2c3b Mon Sep 17 00:00:00 2001
From: nested-universe <180763510+nested-universe@users.noreply.github.com>
Date: Wed, 31 Dec 2025 12:33:05 +0800
Subject: [PATCH] Restore source script operation logic

---
 scripts/menus/9_upgrade.sh | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/scripts/menus/9_upgrade.sh b/scripts/menus/9_upgrade.sh
index e46154b6..24b9750b 100644
--- a/scripts/menus/9_upgrade.sh
+++ b/scripts/menus/9_upgrade.sh
@@ -44,7 +44,7 @@ upgrade() {
         echo "-----------------------------------------------"
         read -p "请输入对应数字 > " num
         case "$num" in
-        0)
+        ""|0)
             break
             ;;
         1)
@@ -95,6 +95,8 @@ upgrade() {
             ;;
         *)
             errornum
+			sleep 1
+			break
             ;;
         esac
     done