修复: 管道运行时无法交互输入的问题

setup_cups.sh

@@ -185,7 +185,7 @@ select_drivers() {
     echo ""
     echo -e "  ${BLUE}示例: 1 2 或 1,2 表示同时安装通用驱动和HP驱动${NC}"
     echo ""
-    read -p "请输入选项 (默认: 1): " driver_choice
+    read -p "请输入选项 (默认: 1): " driver_choice < /dev/tty
     driver_choice=${driver_choice:-1}
     # 统一分隔符
     driver_choice=$(echo "$driver_choice" | tr ',' ' ')
@@ -304,7 +304,7 @@ main() {
     echo -e "${YELLOW}是否将软件源更换为国内镜像（清华大学）？${NC}"
     echo "  推荐：国内用户选择 Y，可大幅加快下载速度"
     echo ""
-    read -p "更换国内源? [Y/n]: " change_mirror
+    read -p "更换国内源? [Y/n]: " change_mirror < /dev/tty
     change_mirror=${change_mirror:-Y}
     echo ""
 
@@ -322,7 +322,7 @@ main() {
     echo "  6. 将当前用户添加到 lpadmin 组"
     echo "  7. 启动并设置开机自启"
     echo ""
-    read -p "是否继续? [Y/n]: " confirm
+    read -p "是否继续? [Y/n]: " confirm < /dev/tty
     confirm=${confirm:-Y}
 
     if [[ ! "$confirm" =~ ^[Yy]$ ]]; then